HCPCS Code J1815: Injection, insulin, per 5 units

HCPCS code J1815 is the code for injection, insulin, per 5 units — used to report insulin by the number of units administered rather than by vial or dose. This guide covers what J1815 includes, how to calculate billing units, how it differs from J1817, and the Medicare coverage and documentation rules that determine whether […]
HCPCS Code V2744: Tint, photochromatic, per lens billing guide

V2744 is the HCPCS Level II code for tint, photochromatic, per lens — the add-on billed when an eyeglass lens gets a photochromic coating that darkens in UV light and clears indoors. It’s billed per lens, not per pair, and never stands alone — it rides on a separately billed base lens code. Medicare pays […]
HCPCS code Q5104: Billing guide for infliximab-abda (Renflexis)

HCPCS code Q5104 bills one unit (10 mg) of infliximab-abda, the biosimilar sold as Renflexis and administered by IV infusion under the buy-and-bill model. This guide covers the code description, unit math, required modifiers, payer-specific rules, related biosimilar codes. HCPCS code Q5104: Definition and code description HCPCS code Q5104 identifies one billing unit of infliximab-abda, […]
HCPCS code C1729: Catheter, drainage billing guide

HCPCS code C1729 identifies a catheter, drainage, a device used for percutaneous drainage of fluids from body cavities, abscesses, or fluid collections. CMS requires it to appear alongside the paired procedure CPT code for covered APC and device combinations, under mandatory reporting rules in force since April 2005. This guide covers the official CMS code […]
HCPCS code J9312: Rituximab billing guide for rheumatology and oncology

HCPCS code J9312 is the HCPCS Level II code for injection, rituximab, 10 mg, the intravenous monoclonal antibody used across oncology and rheumatology. This guide walks through unit calculations, the CPT codes billed alongside J9312, the ICD-10 diagnoses that support medical necessity, the three rituximab biosimilar codes, Medicare reimbursement under the buy-and-bill model, and drug […]
HCPCS code A7032: Nasal mask cushion replacement billing guide

HCPCS code A7032 describes a cushion for use on a nasal mask interface, replacement only, each. It covers the soft, silicone sealing component that sits around the exterior of the nose – not inside the nostrils – and forms an airtight seal between the mask frame and the patient’s face. This guide covers everything DME […]
HCPCS Code A5120: Skin barrier, wipes or swabs, each

A5120 covers ostomy skin barrier wipes under Medicare DMEPOS. The AU modifier is required and the fee ceiling is about $0.28 per unit.
HCPCS Code J0744: Ciprofloxacin IV billing guide

HCPCS code J0744 bills injection, ciprofloxacin IV, 200 mg, and requires JW/JZ modifiers plus NDC reporting on outpatient hospital claims.
HCPCS Code J1644: Heparin sodium injection billing guide

HCPCS Code J1644 bills heparin sodium per 1,000 units — a 5,000-unit dose reports as 5 units on the claim.
HCPCS code J0475: Injection, baclofen, 10 mg billing guide

HCPCS code J0475 covers Injection, baclofen, 10 mg, billed under the Drugs Administered Other than Oral Method category of HCPCS Level II J-codes. In practice, most claim denials for this code come down to one of three mistakes: billing the wrong number of units, omitting a required wastage modifier, or submitting without the correct NDC […]