Oxaliplatin (Eloxatin + generic) — HCPCS J9263

Multiple generic manufacturers (originator: Sanofi Eloxatin) · 50/100/200 mg single-dose vials (5 mg/mL) · IV infusion 2 hours · Third-generation platinum cytotoxic for GI malignancies

Oxaliplatin is the platinum cytotoxic backbone of FOLFOX, CapeOx, FOLFIRINOX, and FLOT — the standard regimens for colorectal, pancreatic, gastric, and esophageal cancer. Bill under HCPCS J9263 at 1 unit = 0.5 mg (NOT 1 mg — this is the most common biller error on the code). Standard 85 mg/m² FOLFOX dose for a 2.0 m² patient = 170 mg = 340 units. CPT 96413 + 96415 × 1 for the 2-hour infusion. JZ + JW both required on virtually every claim (BSA-based dose, fixed-size vials → partial-vial waste). Q2 2026 Medicare reimbursement: $0.078/0.5 mg unit ($26.52 per 170 mg dose, ASP + 6%). Boxed warning: anaphylaxis — epinephrine on hand for every infusion.

ASP data:Q2 2026 (live)
Payer policies:verified May 2026
NCCN guidelines:v2.2026 CRC + Gastric + Pancreatic
FDA label:Eloxatin + generics
Page reviewed:

Instant Answer — the 5 things you need to bill J9263

HCPCS
J9263
1 unit = 0.5 mg
FOLFOX dose (2.0 m²)
340 units
170 mg q14d (85 mg/m²)
Modifiers
JZ + JW
Both — BSA dose, fixed vials
Admin CPT
96413
+ 96415 ×1
Chemo IV (2-hr infusion)
Medicare ASP+6%
$0.078
per 0.5 mg unit, Q2 2026 · $0.156/mg
HCPCS descriptor
J9263 — "Injection, oxaliplatin, 0.5 mg" Permanent
FOLFOX dosing
85 mg/m² IV Day 1 of each 14-day cycle (also FOLFOXIRI, FOLFIRINOX, FLOT regimens)
CapeOx dosing
130 mg/m² IV Day 1 of each 21-day cycle + oral capecitabine
Adjuvant CRC
FOLFOX schedule × 6 months (12 cycles) post-resection of stage III colon cancer
Combo regimens
FOLFOX (CRC), FOLFOXIRI (mCRC), CapeOx/XELOX (CRC), FOLFIRINOX (pancreatic), FLOT (gastric/esophageal peri-op)
NDC (Hospira)
00409-0299-10 (50 mg/10 mL) · 00409-0299-20 (100 mg/20 mL) · 00409-0299-40 (200 mg/40 mL) — representative generic
Vial sizes
50 mg / 10 mL · 100 mg / 20 mL · 200 mg / 40 mL single-dose vials (5 mg/mL solution)
Route
IV infusion over 2 hours in D5W (NEVER in saline — chloride degrades oxaliplatin); slower infusion reduces acute neuropathy
Premedication
5-HT3 antagonist + dexamethasone + NK1 RA (highly emetogenic chemo); antihistamine if prior infusion reaction
Boxed warning
ANAPHYLAXIS — severe hypersensitivity within minutes of infusion start; epinephrine + resuscitation equipment must be immediately available
Patent / generic status
Sanofi Eloxatin patent expired 2009; multiple generic manufacturers (Hospira/Pfizer, Sandoz, Teva, Accord, Fresenius Kabi). Per-mg cost among lowest in cytotoxic class.
⚠️
UNIT TRAP — J9263 is per 0.5 mg, not per mg. Most platinum and cytotoxic codes bill per 1 mg or per 50 mg. J9263 bills per 0.5 mg. To convert milligrams to billable units: multiply mg × 2. Half-unit billing produces immediate underpayment by 50% and is the single most common audit finding on oxaliplatin claims. Verify your billing software's J9263 unit basis before any audit.
⚠️
BOXED WARNING — Anaphylaxis. Severe hypersensitivity reactions (facial flushing, dyspnea, bronchospasm, hypotension, cardiovascular collapse) can occur within minutes of infusion start. Risk increases with cumulative cycles. Healthcare professional administration only, with epinephrine and resuscitation equipment immediately available. Discontinue if anaphylaxis confirmed; refer to specialty oncology pharmacy for desensitization protocols if rechallenge considered. See anaphylaxis section.
Phase 1 Identify what you're billing Confirm the regimen, dose, BSA, and unit basis before billing.

Combination regimens that include oxaliplatin NCCN v2.2026 verified May 2026

Oxaliplatin is almost never given as monotherapy. The regimen drives the cycle length, BSA dose, premedications, and combination admin codes.

NCCN-recommended combination regimens that include oxaliplatin, with cycle length, BSA dose, and primary indication.
RegimenComponentsOxaliplatin doseCyclePrimary indication
FOLFOX (mFOLFOX-6) Oxaliplatin + leucovorin + 5-FU bolus + 5-FU 46-hr CIV 85 mg/m² Day 1 14 days 1L mCRC; adjuvant stage III CRC (12 cycles)
FOLFOXIRI FOLFOX + irinotecan 85 mg/m² Day 1 14 days More aggressive 1L mCRC (good performance status)
CapeOx / XELOX Oxaliplatin + oral capecitabine (no infusional 5-FU) 130 mg/m² Day 1 21 days 1L mCRC alternative to FOLFOX; adjuvant CRC
FOLFIRINOX Oxaliplatin + irinotecan + leucovorin + 5-FU 85 mg/m² Day 1 14 days Pancreatic cancer (1L metastatic + adjuvant)
FLOT Oxaliplatin + leucovorin + 5-FU + docetaxel 85 mg/m² Day 1 14 days Peri-operative gastric / GEJ / esophageal adenocarcinoma
FOLFOX + bevacizumab FOLFOX + bevacizumab (J9035) 85 mg/m² Day 1 14 days 1L mCRC with VEGF-targeted therapy
FOLFOX + cetuximab/panitumumab FOLFOX + EGFR antibody (KRAS/NRAS WT only) 85 mg/m² Day 1 14 days 1L left-sided mCRC, RAS WT
FOLFOX + pembrolizumab FOLFOX + Keytruda (J9271) 85 mg/m² Day 1 14 days (cycles align) MSI-H/dMMR mCRC (some payer pathways)
FOLFOX is the workhorse. 85 mg/m² q14d is the dose you'll see on most oxaliplatin claims. Adjuvant stage III colon cancer (12 cycles) and 1L metastatic CRC are the high-volume indications. CapeOx (130 mg/m² q21d) is the alternative when payers or patients prefer oral capecitabine over an infusion pump.
Combination admin coding: oxaliplatin is typically the initial drug billed at 96413 (chemo IV first hour). Subsequent agents in the cycle (irinotecan, 5-FU bolus, etc.) bill 96417 (each additional sequential infusion). The 5-FU 46-hour CIV through a portable pump bills under 96416 (initiation of prolonged chemo infusion, requires use of portable or implantable pump). Verify your charge capture has all sequential infusion codes for the full cycle.

Dosing & unit math FDA label verified May 2026

From the FDA prescribing information (Eloxatin originator + generic SPLs).

BSA-based dosing — the math that drives unit calculation

Oxaliplatin is dosed in milligrams per square meter of body surface area (mg/m²). Every patient gets a BSA-calculated dose, then milligrams are converted to J9263 units by multiplying by 2 (because 1 unit = 0.5 mg).

  • FOLFOX / FOLFOXIRI / FOLFIRINOX / FLOT (q14d): 85 mg/m²
  • CapeOx / XELOX (q21d): 130 mg/m²
  • Round up to fill smallest combination of 50/100/200 mg vials
  • Calculate waste (drawn dose − administered mg) and bill JW for waste in 0.5 mg units

BSA-to-units quick reference (85 mg/m² FOLFOX dose)

BSA (m²)Dose (mg)Vials drawnTotal drug (mg)Waste (mg)JZ unitsJW units
1.51281 × 100 + 1 × 50 = 1501502225644
1.71451 × 100 + 1 × 50 = 150150529010
1.851572 × 100 = 2002004331486
2.01702 × 100 = 2002003034060
2.21872 × 100 = 2002001337426
2.42041 × 200 + 1 × 50 = 2502504640892

Worked example — FOLFOX cycle billing for a 1.85 m² patient

# Step 1 — calculate dose
BSA: 1.85 m² × 85 mg/m² = 157.25 mg (round to 157 mg)

# Step 2 — vial selection
Two 100 mg vials drawn = 200 mg total
Administered: 157 mg · Waste: 43 mg

# Step 3 — convert mg to J9263 units (mg × 2)
Administered units (JZ line): 157 × 2 = 314 units
Waste units (JW line): 43 × 2 = 86 units

# Step 4 — admin coding for 2-hr infusion
Hour 1 (initial): 96413 × 1
Hour 2 (each addl): 96415 × 1

# Drug reimbursement (Q2 2026 ASP+6%)
Drug paid (administered + waste): 400 units × ~$0.078 = ~$31.20
# Note: admin codes generate substantially more revenue than the drug itself.

Adjuvant stage III colon cancer cycles

  • FOLFOX schedule: 12 cycles over 6 months (q14d)
  • Many patients require dose reduction or oxaliplatin discontinuation by cycle 8–10 due to cumulative neuropathy
  • Consider 3-month adjuvant FOLFOX (6 cycles) for low-risk T3N1 disease per IDEA collaboration data

Solvent: D5W only, NOT saline

Oxaliplatin must be diluted in 5% Dextrose (D5W), NEVER 0.9% NaCl or any chloride-containing solution. Chloride degrades oxaliplatin. Pharmacy compounding error here causes loss of drug activity. Verify infusion bag selection and document if a saline-flush bracket is used.

NDC reference (representative generics) FDA NDC Directory verified May 2026

Multiple manufacturers; submit the actual NDC of the vial used. These are common examples.

ManufacturerNDC (10/11-digit)Vial sizeNotes
Hospira / Pfizer 0409-0299-10 / 00409-0299-10 50 mg / 10 mL 5 mg/mL preservative-free SDV
Hospira / Pfizer 0409-0299-20 / 00409-0299-20 100 mg / 20 mL Most commonly drawn for FOLFOX 85 mg/m² doses
Hospira / Pfizer 0409-0299-40 / 00409-0299-40 200 mg / 40 mL Used for high-BSA patients and CapeOx 130 mg/m² doses
Sandoz 0781-3046-94 / 00781-3046-94 100 mg / 20 mL Generic alternative
Accord Healthcare 16729-243-66 / 16729-0243-66 100 mg / 20 mL Generic alternative
Sanofi-Aventis (originator Eloxatin) 0024-0590-50 / 00024-0590-50 50 mg / 10 mL Originator brand — rarely seen post-generic
Use the actual NDC of the vial drawn. Generic manufacturers carry different NDCs but all bill under HCPCS J9263. If your buy-and-bill inventory rotates between Hospira, Sandoz, and Accord, your billing system should pull the NDC from the lot used at admin time. NDC mismatch is a common documentation deficiency in payer audits.
Phase 2 Code the claim 2-hour infusion needs both 96413 and 96415. Both JZ + JW required for BSA waste.

Administration codes CPT verified May 2026

Oxaliplatin is true cytotoxic chemotherapy — chemo admin codes are required.

CodeDescriptionWhen to use
96413 Chemotherapy administration, IV infusion technique; up to 1 hour, single or initial substance/drug Hour 1 of oxaliplatin infusion (always primary). One unit per encounter as the initial drug.
96415 Chemotherapy administration, IV infusion; each additional hour Hour 2 of oxaliplatin (always × 1 unit). Standard infusion is 2 hours total.
96417 Chemotherapy administration, IV infusion technique; each additional sequential infusion (different substance/drug) For each subsequent agent in the FOLFOX/FOLFIRINOX/FLOT cycle (irinotecan, leucovorin, 5-FU bolus, docetaxel)
96416 Initiation of prolonged chemotherapy infusion (more than 8 hours) requiring portable or implantable pump For 5-FU 46-hour continuous infusion via take-home portable pump (FOLFOX/FOLFOXIRI/FOLFIRINOX/FLOT)
96521 Refilling and maintenance of portable pump For 46-hr 5-FU pump return/disconnect visit (Day 3)
96365 / 96366 Therapeutic IV infusion (non-chemo) NOT appropriate. Oxaliplatin is true cytotoxic chemotherapy — chemo admin codes apply.
Why 2-hour infusion matters. Standard oxaliplatin infusion duration is 2 hours per the FDA label. Slower infusion (4–6 hours) reduces acute cold-triggered peripheral neuropathy and laryngopharyngeal spasm and may be ordered for patients with significant prior reactions. Faster infusion (under 1 hour) is associated with worse acute neurotoxicity and is not recommended. Document actual infusion time in the medical record — payers occasionally audit 96415 use against documented chair time.

Modifiers — both JZ and JW required CMS verified May 2026

Why both JZ + JW for oxaliplatin (vs JZ-only for fixed-dose biologics)

Oxaliplatin is dosed by BSA (mg/m²) and supplied in fixed 50/100/200 mg vials — so the prepared dose almost never matches the vial sum exactly. Example: 1.85 m² patient needs 157 mg but the smallest vial combination drawn is 200 mg (two 100 mg vials). 43 mg is discarded. Bill the administered units under JZ and the discarded units under JW on a separate claim line. One of JZ or JW must be on every J9263 claim per CMS's July 2023 single-dose container policy — in practice oxaliplatin claims need BOTH.

ModifierUseExample
JZ Reports zero discarded drug from a single-dose container. Use on the line for administered units. 1.85 m² FOLFOX dose: 314 units of J9263 with JZ (the 157 mg administered)
JW Reports the discarded portion of a single-dose vial when waste exists. Use on a separate claim line for the wasted units. Same dose: 86 units of J9263 with JW (the 43 mg discarded)
25 (E/M) Significant separately identifiable E/M same day as infusion Use on the E/M line, not on J9263. Routine pre-infusion clinical assessment is bundled.
JG / TB 340B-acquired drug modifiers per MAC policy Required if facility participates in 340B and oxaliplatin is 340B-purchased. Verify per MAC.
Common error: billing only JZ on a BSA-dosed claim with no JW line. Auditors flag this as "implausible — whole-vial waste expected for BSA dosing with fixed vial sizes." Conversely, billing both JZ and JW where total units exceed the vials drawn (e.g., bilingual JZ for 314 + JW for 86 should equal exactly the vials drawn × 2 = 400 units). Reconcile JZ + JW units = vials drawn × 2.
JW reimbursement is real money on oxaliplatin. Wasted drug is reimbursable when documented with JW. On a generic agent at ~$0.078/unit the absolute dollars per claim are modest, but at scale (100+ patients on adjuvant FOLFOX = 1,200 cycles/year), missed JW lines compound into meaningful underpayment.

ICD-10-CM by indication FY2026 verified May 2026

Oxaliplatin is on-label for colorectal, gastric/esophageal, and pancreatic cancers. Use the most specific code supported by encounter documentation.

IndicationICD-10 familyNotes
Colon cancer (by site)C18.0–C18.9Most common: C18.7 (sigmoid), C18.2 (ascending), C18.3 (hepatic flexure), etc.
Rectosigmoid junctionC19Adjuvant + metastatic
Rectal cancerC20Adjuvant + metastatic; total neoadjuvant therapy (TNT) increasingly common
Anal canalC21.xOff-label for anal SCC; FOLFOX has limited use
Pancreatic adenocarcinomaC25.0–C25.9FOLFIRINOX: 1L metastatic + adjuvant
Gastric (stomach)C16.0–C16.9FLOT peri-operative; FOLFOX 1L metastatic
EsophagealC15.3–C15.9FLOT peri-operative for adenocarcinoma; FOLFOX off-label use
GE junctionC16.0FLOT or FOLFOX
Hepatocellular carcinomaC22.0Off-label; FOLFOX has activity in some Asian guideline pathways
Biliary tract / cholangiocarcinomaC22.1, C24.xOff-label; gem/cis preferred but FOLFOX used in 2L
Drug-induced peripheral neuropathyG62.0Use to support neuropathy management visits and dose-reduction documentation
Anaphylactic reaction (hx)T80.52XAFor documenting prior infusion reaction; supports desensitization claims
Personal hx of malignant neoplasmZ85.038 (colon), Z85.118 (other), etc.For surveillance/follow-up after adjuvant FOLFOX completion
Stage-specific PA documentation: for adjuvant FOLFOX, payers expect stage III (T any, N1–N2, M0) documentation with surgical pathology report. FOLFOX is generally not approved for stage I or stage II low-risk disease without high-risk features (T4, perforation, fewer than 12 nodes sampled, lymphovascular invasion).

Site of care & place of service Verified May 2026

Oxaliplatin is administered in physician oncology offices, hospital outpatient infusion centers, and ambulatory infusion suites. The 5-FU 46-hour CIV portable pump component (FOLFOX/FOLFIRINOX/FLOT) means patients leave the chair after the oxaliplatin + leucovorin + 5-FU bolus is complete (~3–4 hours chair time) and return on Day 3 for pump disconnect.

SettingPOSClaim formPayer steering
Physician oncology office11CMS-1500 / 837PPreferred by commercial UM
Ambulatory infusion suite (AIC)49CMS-1500 / 837PPreferred by commercial UM
Oncology ASC24CMS-1500 / 837PAcceptable
Hospital outpatient (on-campus)22UB-04 / 837IDisfavored after first 3 months by major commercial plans
Hospital outpatient (off-campus PBD)19UB-04 / 837IDisfavored after first 3 months by major commercial plans
Patient home (5-FU pump only)12n/a (pump return is in-office)Pump itself is at home; oxaliplatin always in-office
Anaphylaxis risk drives site-of-care policy. Even commercial UM that aggressively steers biologics out of HOPD generally accepts in-office or AIC oxaliplatin administration because of the boxed warning + cumulative anaphylaxis risk requiring resuscitation capacity. Home oxaliplatin is not done.

Claim form field mapping Verified May 2026

CMS-1500 / 837P fields for an oxaliplatin FOLFOX cycle.

InformationCMS-1500 boxNotes
NPI17bRendering oncologist
NDC qualifier + 11-digit NDC + UoM + qty24A shaded areaN4 + actual lot NDC + ML + total volume drawn (e.g., 40 mL for two 100 mg vials)
HCPCS J9263 + JZ (administered units)24D (drug line 1)Units = administered mg × 2
HCPCS J9263 + JW (waste units)24D (drug line 2 — separate line)Units = discarded mg × 2
Drug units (administered)24G line 1e.g., 314 for 157 mg
Drug units (waste)24G line 2e.g., 86 for 43 mg
CPT 96413 (admin, hour 1)24D admin line AOne unit, oxaliplatin as initial drug
CPT 96415 (admin, addl hour)24D admin line BOne unit for hour 2 of oxaliplatin
CPT 96417 (each addl sequential)24D admin lines C+One per subsequent agent (irinotecan, 5-FU bolus, etc.)
CPT 96416 (initiation prolonged pump)24D admin lineFor 5-FU 46-hr CIV via take-home pump
ICD-1021Indication-specific (see ICD-10 table)
PA number23Most commercial payers; Medicare LCDs cover FDA + NCCN
Phase 3 Get paid Generic oxaliplatin is not the PA bottleneck. The combo agents (bevacizumab, cetuximab, pembrolizumab) are.

Payer policy snapshot Reviewed May 2026

PayerPA (oxaliplatin alone)?Concurrent PA on combo agents?Notes
Medicare (MAC LCDs) No (covered for FDA + NCCN-recommended uses) n/a NCD/LCD framework covers oxaliplatin per FDA label + NCCN guidelines (off-label use compendium-supported)
UnitedHealthcare Yes (oncology medical drug policy) Yes — PA on bevacizumab, cetuximab, panitumumab, pembrolizumab combos Aggressive site-of-care UM via Optum-managed program for HOPD; oxaliplatin itself rarely denied for on-label CRC/gastric/pancreatic
Aetna Yes (CPB + Medical Drug policy) Yes Site-of-care steering after first 3 months for combo regimens involving biologics
BCBS plans Generally no for oxaliplatin alone; varies by plan Yes for combo biologics Generally aligned with NCCN guidelines + FDA label

Step therapy

Generally NOT required for oxaliplatin in FDA-labeled indications. Some payers require prior 5-FU/leucovorin failure before FOLFIRINOX in pancreatic cancer when patient performance status is marginal. Verify per-payer.

The PA fight is rarely about oxaliplatin itself. Generic oxaliplatin is cheap and on-label for high-volume GI cancers. The PA friction comes from the combo biologics (bevacizumab, cetuximab, pembrolizumab) where biomarkers (KRAS/NRAS/BRAF, MSI-H/dMMR) and line of therapy drive approval. Schedule biomarker testing FIRST for any patient who may go on FOLFOX + EGFR antibody or FOLFOX + checkpoint inhibitor.

Medicare reimbursement CMS Q2 2026 (live)

Quarterly ASP from CMS Part B Drug Pricing File. Refreshes automatically each quarter.

Q2 2026 payment snapshot — J9263

Effective April 1 – June 30, 2026 · Based on 4Q25 ASP submissions

ASP + 6%
$0.078
per 0.5 mg unit
170 mg FOLFOX dose
$26.52
340 units × ASP+6%
260 mg CapeOx dose
$40.56
520 units × ASP+6%
Annualized adjuvant FOLFOX drug cost: 12 cycles × ~$26.52/cycle (1.85 m² patient) = ~$318/year in oxaliplatin acquisition cost. Among the lowest annualized drug costs of any cytotoxic regimen because oxaliplatin has been generic since 2009. The administration codes (96413 + 96415 + 96417 × sequential agents + 96416 for the 5-FU pump) generate substantially more revenue than the oxaliplatin itself.

Coverage

No NCD specific to oxaliplatin. Coverage falls under MAC LCDs for chemotherapy + the generic drug-coverage framework. All MACs cover J9263 for FDA-approved on-label indications (CRC, gastric, pancreatic) and NCCN-compendium-supported off-label uses with appropriate ICD-10 documentation.

Code history

  • J9263 — "Injection, oxaliplatin, 0.5 mg" (permanent)
  • 0.5 mg unit basis is unusual for the platinum class — carboplatin J9045 is per 50 mg, cisplatin J9060 is per 1 mg. Oxaliplatin's 0.5 mg basis is the most common biller error on the code.

Platinum class comparison

DrugHCPCSUnit basisGenerationPrimary indicationsHallmark toxicity
Oxaliplatin J9263 0.5 mg 3rd gen Colorectal, gastric, pancreatic (FOLFOX, FOLFIRINOX, FLOT) Peripheral neuropathy (acute cold-triggered + chronic cumulative); anaphylaxis (boxed)
Carboplatin J9045 50 mg 2nd gen Ovarian, lung, breast, head & neck Myelosuppression (esp. thrombocytopenia); less neurotoxic than cisplatin
Cisplatin J9060 1 mg 1st gen Multiple solid tumors (testicular, bladder, lung, head & neck) Nephrotoxicity (requires hydration), ototoxicity, severe nausea, neuropathy
Class context: Oxaliplatin is the preferred platinum for GI malignancies because it's active where carboplatin and cisplatin are not (notably colon cancer). Cisplatin and carboplatin retain primacy in gynecologic, lung, and head & neck cancers. The three platinums are not interchangeable — substituting one for another is regimen-defining, not cosmetic.

Patient assistance Verified May 2026

  • Generic manufacturer support: Hospira/Pfizer, Sandoz, and Accord all run generic oncology product assistance programs — verify with the dispensing pharmacy at the time of buy-and-bill purchase
  • Sanofi Patient Connection: 1-888-847-4877 / sanofipatientconnection.com — legacy Eloxatin support program; covers brand Eloxatin only (rarely seen post-generic)
  • Foundations (oncology): PAN Foundation, HealthWell Foundation, CancerCare Co-Payment Assistance Foundation — verify open colorectal, gastric, and pancreatic cancer funds quarterly
  • Co-Pay Relief (PAF): Patient Advocate Foundation — co-pay assistance for chemotherapy patients
  • NeedyMeds: needymeds.org — aggregator of patient assistance programs across generic chemo agents
Generic oxaliplatin is rarely the OOP burden. Patient cost concerns on FOLFOX/CapeOx regimens typically come from the combo biologics (bevacizumab, cetuximab, pembrolizumab) and the infusion administration coinsurance (Medicare Part B 20%). Run a CareCost Estimate to see total cycle OOP including all drugs, admin, premedications, and supportive care — J9263 pre-loaded.
Phase 4 Safety, warnings & denials Anaphylaxis is the boxed warning. Peripheral neuropathy is the dose-limiting toxicity.

Boxed warning — anaphylaxis FDA label verified May 2026

BOXED WARNING: Severe hypersensitivity / anaphylactic reactions to oxaliplatin can occur within minutes of infusion start. Symptoms include facial flushing, generalized urticaria, dyspnea, bronchospasm, hypotension, and cardiovascular collapse. Healthcare professional administration only. Epinephrine, corticosteroids, antihistamines, and resuscitation equipment must be immediately available. Discontinue oxaliplatin if anaphylaxis is confirmed.

Risk pattern

  • Most reactions occur after multiple cycles (cumulative sensitization)
  • Highest risk window: cycles 7–12 of FOLFOX
  • Cross-reactivity with other platinums (cisplatin, carboplatin) is real — document any prior platinum reaction history
  • Re-treatment after anaphylaxis requires desensitization protocol via specialty oncology pharmacy — rare

Documentation that supports billing

  • Premedication ordered per protocol (5-HT3 antagonist + dexamethasone + NK1 RA standard; antihistamine added if prior reaction)
  • Vital signs at baseline, 15 min, 30 min, 1 hr, 2 hr (end of infusion)
  • Resuscitation equipment availability documented
  • If reaction occurs: T80.52XA (anaphylactic reaction due to therapeutic drug, initial encounter); for subsequent monitoring use T80.52XD
  • Discontinuation note in oncologist's record if oxaliplatin is dropped

Other important warnings & precautions (not boxed)

  • Myelosuppression — thrombocytopenia, neutropenia, anemia; CBC required prior to each cycle
  • Pulmonary fibrosis / interstitial lung disease — rare but serious; investigate new dyspnea
  • Hepatotoxicity — sinusoidal obstruction syndrome (SOS) with prolonged use; monitor LFTs
  • Posterior reversible encephalopathy syndrome (PRES) — rare; evaluate any new seizure or visual disturbance
  • QT prolongation — rare; baseline ECG advisable in patients with cardiac history
  • Embryo-fetal toxicity — effective contraception required during and 9 months after therapy (females), 6 months (males)

Peripheral neuropathy — the dose-limiting toxicity FDA label + NCCN verified May 2026

Oxaliplatin causes two distinct peripheral neuropathy syndromes. Coders should distinguish them in clinical notes for support documentation, and patients require explicit education about cold avoidance.

Acute (cold-triggered)Chronic (cumulative)
Incidence85–95% of patients~50% at >12 cycles
OnsetDuring or within hours of infusionCumulative over multiple cycles, peaks 6–12 cycles in
TriggerCold exposure (cold drinks, cold air, ice, metal door handles)Cumulative dose; not cold-triggered
SymptomsParesthesia, dysesthesia in hands/feet/perioral; pharyngolaryngeal dysesthesia (sense of inability to breathe)Persistent numbness, tingling, loss of fine motor control, gait instability
ReversibilityUsually resolves between cyclesMay be permanent; partial recovery over months to years
ManagementCold avoidance education; warm gloves/scarves; slower infusion (4–6 hr) if severeHold or reduce dose if Grade 2+; "stop-and-go" oxaliplatin holiday after 6 cycles in mCRC; discontinue if Grade 3+
ICD-10G62.0 drug-induced polyneuropathyG62.0
Patient cold-avoidance education is critical and bills under E/M (not as a separate procedure). Patients must avoid cold drinks (use straws, room-temp), cold air (scarves over face in winter), ice (ice packs, ice cubes), and cold metal (gloves to open refrigerator). Education at cycle 1 is part of the infusion encounter; reinforce at every cycle. Document the patient's adherence and any new symptoms.
Stop-and-go strategy in mCRC: per OPTIMOX studies and NCCN guidelines, planned oxaliplatin discontinuation after 6 cycles of FOLFOX in metastatic CRC (continuing 5-FU/leucovorin maintenance) reduces chronic neuropathy without compromising efficacy, with reintroduction at progression. Document the stop-and-go plan in the oncologist's note for adjudication of any payer questions about regimen modification.

Common denials & how to fix them

Denial reasonCommon causeFix
Underpayment / units flagged as lowBilled J9263 in mg, not 0.5 mg unitsConvert administered mg × 2 for units. Resubmit corrected claim. This is the #1 oxaliplatin error.
JW missing on BSA-dosed claimWasted drug not reported separatelyAdd a separate J9263 line with JW + waste units. CMS audit pattern: BSA dosing without JW = implausible.
Wrong admin code (96365)Therapeutic IV billed instead of chemo IVResubmit with 96413 + 96415. Oxaliplatin is true cytotoxic chemo.
Missing 96415 for hour 2Only 96413 billed for full 2-hr infusionAdd 96415 × 1 unit for hour 2. Documented chair time supports the claim.
NDC mismatch on lotBilled Hospira NDC but Sandoz or Accord lot dispensedPull NDC from actual lot at admin time. Generic interchange happens at the buy-and-bill level.
Stage / line of therapy not documentedAdjuvant FOLFOX submitted without stage III pathologySubmit surgical pathology report showing stage III (T any, N1-N2, M0) or high-risk stage II features.
Sequential infusion codes missingFOLFOX cycle billed with only 96413 + 96415 (no 96417 for subsequent agents)Add 96417 × 1 for each additional agent (irinotecan, 5-FU bolus, leucovorin if separate). Add 96416 for 5-FU 46-hr pump.
Combo biologic PA missingFOLFOX approved but bevacizumab/cetuximab/pembrolizumab notSubmit separate PA for each combo agent. Bevacizumab requires no biomarker; cetuximab/panitumumab require KRAS/NRAS/BRAF testing; pembrolizumab requires MSI-H/dMMR.
Solvent error documentationPharmacy used saline instead of D5WThis is a pharmacy compounding error, not a billing error — drug is degraded; do not administer; document waste; may not be reimbursable.

Frequently asked questions

What is the HCPCS code for oxaliplatin?

Oxaliplatin (Eloxatin originator + all generics) is billed under HCPCS J9263 — "Injection, oxaliplatin, 0.5 mg." 1 unit = 0.5 mg, not 1 mg. This is unusual among platinum chemo agents and is the single most common biller error on the code.

How many units do I bill for an 85 mg/m² FOLFOX dose?

Multiply the patient's BSA by 85 to get total mg, then double that number for J9263 units. Examples: 1.7 m² = 145 mg = 290 units; 1.85 m² = 157 mg = 314 units; 2.0 m² = 170 mg = 340 units; 2.2 m² = 187 mg = 374 units.

What administration CPT do I use for oxaliplatin?

CPT 96413 for hour 1 + CPT 96415 × 1 for hour 2. Standard infusion is 2 hours per the FDA label; slower infusion reduces acute peripheral neuropathy. For combination regimens, oxaliplatin is the initial drug; subsequent agents bill 96417 (each additional sequential infusion). 5-FU 46-hr CIV via portable pump bills 96416. Do NOT bill 96365.

Do I bill JZ or JW for oxaliplatin?

Both, on virtually every claim. Oxaliplatin is BSA-dosed but vials are fixed at 50/100/200 mg, so partial-vial waste is the norm. Bill JZ on the line for administered units and JW on a separate line for waste units. Both lines convert mg → units by × 2. CMS requires JZ or JW on every single-dose container claim per the July 2023 policy.

What is the Medicare reimbursement for J9263?

For Q2 2026, the Medicare Part B payment limit for J9263 is approximately $0.078 per 0.5 mg unit (ASP + 6%). A 170 mg FOLFOX dose (340 units) costs about $26.52; a 260 mg CapeOx dose (520 units) about $40.56. Annualized adjuvant FOLFOX drug cost: ~$318/year. Among the lowest cytotoxic per-mg costs because the drug has been generic since 2009.

Which combination regimens use oxaliplatin?

Five major NCCN regimens: FOLFOX (1L mCRC + adjuvant CRC, 85 mg/m² q14d), FOLFOXIRI (more aggressive 1L mCRC, 85 mg/m² q14d), CapeOx / XELOX (1L mCRC alternative + adjuvant CRC, 130 mg/m² q21d), FOLFIRINOX (pancreatic, 85 mg/m² q14d), FLOT (peri-operative gastric/esophageal, 85 mg/m² q14d). FOLFOX is the workhorse and accounts for the majority of oxaliplatin claim volume.

What is the boxed warning for oxaliplatin?

Anaphylaxis. Severe hypersensitivity reactions (facial flushing, dyspnea, bronchospasm, hypotension, cardiovascular collapse) can occur within minutes of infusion start. Risk increases with cumulative cycles — highest risk at cycles 7–12. Healthcare professional administration only with epinephrine and resuscitation equipment immediately available. Discontinue if anaphylaxis confirmed.

What are oxaliplatin's two peripheral neuropathy patterns?

(1) Acute cold-triggered (85–95% of patients): paresthesia, dysesthesia in extremities and perioral region, triggered by cold exposure. Usually resolves between cycles. Patient education to avoid cold (drinks, air, ice, metal) is essential. (2) Chronic cumulative (~50% at >12 cycles): persistent peripheral neuropathy that may be permanent; this is the dose-limiting toxicity. Consider holding or reducing oxaliplatin if Grade 2+, discontinue if Grade 3+. ICD-10 G62.0 (drug-induced polyneuropathy) supports neuropathy management claims.

Why must oxaliplatin be diluted in D5W and not saline?

Chloride degrades oxaliplatin. The drug must be diluted in 5% Dextrose (D5W) only — never in 0.9% NaCl or any chloride-containing solution. Pharmacy compounding errors here cause loss of drug activity. Verify infusion bag selection at pharmacy and document the diluent in the medical record.

How is oxaliplatin different from carboplatin and cisplatin?

All three are platinum-based DNA-crosslinking cytotoxics, but they're not interchangeable. Oxaliplatin (J9263, 3rd gen) is the platinum for GI cancers (CRC, gastric, pancreatic); peripheral neuropathy is the hallmark toxicity. Carboplatin (J9045, 2nd gen) is used in ovarian, lung, breast, and head & neck cancers; myelosuppression (especially thrombocytopenia) is the hallmark toxicity. Cisplatin (J9060, 1st gen) is used across many solid tumors; nephrotoxicity (requires aggressive hydration) is the hallmark. Substituting one platinum for another is regimen-defining, not cosmetic.

Reference Sources & methodology Every claim on this page is sourced. Methodology and review history below.

Source documents

  1. DailyMed — Oxaliplatin (Eloxatin originator + multiple generic SPLs)
    FDA-approved label; originator NDA 21-492 (Sanofi-Aventis 2002), generics post-2009
  2. FDA Eloxatin label PDF (s015, 2015)
    Boxed warning for anaphylactic reactions; warnings/precautions for peripheral neuropathy, myelosuppression, pulmonary fibrosis, hepatotoxicity, PRES
  3. CMS — Medicare Part B Drug ASP Pricing File
    Q2 2026 quarterly file, effective April 1 – June 30, 2026
  4. SEER CanMED — HCPCS J9263 reference
    "Injection, oxaliplatin, 0.5 mg" — unit basis confirmation
  5. NCCN Clinical Practice Guidelines in Oncology — Colon Cancer (v.2.2026)
    FOLFOX + CapeOx adjuvant + metastatic CRC regimens
  6. NCCN Clinical Practice Guidelines — Rectal Cancer (v.2.2026)
    Total neoadjuvant therapy (TNT) FOLFOX schedules
  7. NCCN Clinical Practice Guidelines — Pancreatic Adenocarcinoma (v.2.2026)
    FOLFIRINOX 1L metastatic + adjuvant pancreatic
  8. NCCN Clinical Practice Guidelines — Gastric Cancer (v.2.2026)
    FLOT peri-operative + FOLFOX 1L metastatic
  9. UnitedHealthcare — Oncology Medication Clinical Coverage Policy
  10. Aetna CPB — Colorectal Cancer Chemotherapy
  11. FDA National Drug Code Directory
  12. Sanofi Patient Connection (legacy Eloxatin support)

About this page

We maintain this page as a living reference. Medicare ASP pricing is bound to our underlying CareCost data layer and refreshes automatically when CMS publishes new quarterly files. Coding and policy content is reviewed at least quarterly and updated whenever a source document changes.

Found an error? Email hello@carecostestimate.com.

Refresh cadence

ElementCadenceHow it's refreshed
Medicare ASP pricingQuarterlyAuto-bound to CareCost ASP layer; updates on CMS file release.
Payer policies (UHC, Aetna, BCBS)Semi-annualManual review against published payer policy documents.
NCCN regimens (FOLFOX, FOLFIRINOX, FLOT)Semi-annualReviewed against NCCN CRC + Gastric + Pancreatic guideline updates.
HCPCS / CPT / modifier rulesAnnualReviewed against CMS HCPCS quarterly files and AMA CPT releases.
NDC, dosing, FDA labelEvent-drivenTied to FDA label revision date and generic NDC additions/withdrawals.

Reviewer

Pending SME review. This page is staff-authored from primary sources (FDA label, CMS, NCCN guidelines, payer policy documents — all linked above). Editorial review in progress. Until that review is complete, treat this as a draft reference and verify each cited source for high-stakes claims.

Change log

  • — Initial publication. ASP data: Q2 2026. NCCN: v.2.2026 CRC + Gastric + Pancreatic. FDA label: Eloxatin originator + generic SPLs. Five combo regimens documented (FOLFOX, FOLFOXIRI, CapeOx, FOLFIRINOX, FLOT). Boxed warning anaphylaxis + peripheral neuropathy two-pattern callouts included. Platinum class comparison vs carboplatin (J9045) and cisplatin (J9060).

Methodology

Every claim on this page is sourced inline. Pricing reflects the current CMS Part B Drug ASP Pricing File. Payer policies are read directly from each payer's published medical/pharmacy policy documents. Combo regimens are verified against NCCN guideline current version. We do not paraphrase from billing-software vendor blogs.

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