HCPCS code L8030: Breast prosthesis billing guide (2026)

HCPCS code L8030 covers a silicone (or equal) breast prosthesis without integral adhesive, billed as durable medical equipment under Medicare and most commercial payers. Getting the claim right takes more than knowing the code descriptor. Medicare’s claims management requirements for external breast prosthetics are specific. Suppliers need one prosthesis per side, verified medical necessity, and […]
HCPCS Code T4521: Adult disposable incontinence brief, small

HCPCS Code T4521 describes an adult-sized disposable incontinence brief or diaper, in small size, billed per unit. It sits within a size-specific code family, T4521 through T4524, where billing the wrong size code is one of the most common reasons these claims get denied. This guide covers T4521’s code properties, Medicare and Medicaid coverage rules, […]
HCPCS Code A4432: Urinary ostomy pouch billing guide

HCPCS Code A4432: What it covers and how to bill it HCPCS Code A4432 covers the 2-piece urinary ostomy pouch with a non-locking flange and a faucet-type tap with valve, billed per unit under Medicare Part B. It sits in a family of similar-looking codes, A4431 through A4435, where a single physical detail on the […]
HCPCS Code C1721: Cardioverter-defibrillator, dual chamber (implantable)

HCPCS Code C1721 identifies a cardioverter-defibrillator, dual chamber (implantable), commonly called an AICD. Hospital outpatient facilities report it on a UB-04 claim under Revenue Code 278, paired with a companion CPT code such as CPT 33249, when Coverage Code D documentation supports medical necessity under NCD 20.4. HCPCS Code C1721: definition and clinical description HCPCS […]
HCPCS code K0004: High strength, lightweight wheelchair billing guide

HCPCS code K0004 is the billing code for a high strength, lightweight wheelchair: A manual wheelchair weighing less than 34 lbs, built with high-strength aluminum or titanium framing that has passed PDAC coding verification. It sits between the standard lightweight K0003 and the ultralight K0005 in the wheelchair code range. Most denials on K0004 claims […]
HCPCS Code A4630: Replacement batteries for TENS units

HCPCS code A4630 covers replacement batteries, medically necessary, for a transcutaneous electrical nerve stimulator (TENS) owned by the patient. It applies to both rechargeable and non-rechargeable batteries and sits in the HCPCS Level II A4630-A4640 replacement parts range. Whether you can bill A4630 separately depends on the payer. Medicare’s DME MAC treats TENS batteries as […]
HCPCS Code A4613: Battery charger billing guide

HCPCS Code A4613 describes a battery charger replacement for a patient-owned ventilator. It is non-covered by Medicare statute, so a missed status check or the wrong modifier turns a clean claim into a denial. This guide covers the code’s properties, jurisdiction rules, NU/RR/UE modifier guidance, related codes, and documentation requirements so your claims go out […]
HCPCS code J3111: Injection, romosozumab-aqqg billing guide

HCPCS code J3111 is the billing code for injection of romosozumab-aqqg (Evenity) at 1 mg per unit, so the standard 210 mg dose bills as 210 units. Missing the JW or JZ modifier on a single-dose vial claim is the most common reason these claims get rejected. This guide covers J3111’s definition and unit calculation, […]
HCPCS code J2327: Billing units, modifiers and coverage

HCPCS code J2327 is the billing code for injection, risankizumab-rzaa, intravenous, 1 mg. CMS established the code effective January 1, 2023 for the intravenous formulation of this IL-23 inhibitor biologic, marketed as Skyrizi and used for Crohn’s disease and ulcerative colitis induction therapy. This reference covers the code description, approved indications, dosing unit calculations by […]
HCPCS code E0483: High frequency chest wall oscillation billing guide

This guide breaks down HCPCS code E0483, the code Medicare and DME suppliers use to bill complete high frequency chest wall oscillation (HFCWO) vest systems. It covers the code’s definition and 2025 descriptor update, Medicare coverage criteria under LCD L33785, the documentation that keeps claims out of post-payment review, and how E0483 differs from the […]