Amniotic allograft Q-codes: a clinician reference

What a Q-code is

HCPCS Level II Q-codes are temporary national codes that CMS assigns to specific drugs, biologicals, and tissue-based products that do not yet have a permanent code or that require product-specific identification for payment. For amniotic membrane allografts and other skin substitutes, the Q-code identifies the specific manufacturer product on the claim, separate from the CPT application code (15271–15278) and from the wound diagnosis codes ^[1].

The HCPCS code set is updated quarterly. A Q-code that was valid in Q1 may be revised, replaced, or deleted in Q2. CMS publishes a quarterly HCPCS update file that practices should monitor ^[1].

How a Q-code is assigned to a product

Manufacturers submit a HCPCS application to CMS with product specifications, FDA regulatory status (typically 21 CFR 1271 for HCT/Ps, see ^[2]), and pricing data. CMS reviews and either assigns an existing code, assigns a new Q-code, or denies the application. The assignment is published in the quarterly HCPCS update ^[1]. Practices cannot rely on a manufacturer''s sales material as the authoritative source for a current Q-code; always check the CMS file or the Medicare Coverage Database (MCD) ^[3].

Common Q-code billing errors

1. Using a deleted code. If a Q-code was deleted in the most recent quarterly update, claims billed under that code will deny. Re-verify before the start of each quarter.
2. Mismatched units. Q-codes for skin substitutes are billed per square centimeter applied. Reporting "1 unit" for a 16 cm² graft is a common error; the correct entry is the actual square centimeters applied to the wound.
3. Missing the JW/JZ modifier. When product is discarded, the JW modifier (or JZ where required) must be reported with documented support in the chart. Failure to use the correct modifier is a frequent denial reason ^[4].
4. Wrong code for the product actually applied. Each amniotic allograft brand and configuration has its own Q-code. Applying Product A but billing Product B''s code is a coding error and a compliance exposure.

How to verify the current Q-code for a product

1. Open the most recent quarterly HCPCS update file on CMS.gov ^[1].
2. Search by the product name as it appears on the manufacturer''s package insert.
3. Cross-reference against the Medicare Coverage Database for any LCD/Article restricting use of that code in your MAC jurisdiction ^[3].
4. Confirm the unit of measure (per cm²) and any payment limitation (ASP-based or otherwise) listed for the code.

What we do not publish

We only publish individual Q-code reference pages on this site when we have verified, current data for that code. We do not generate templated Q-code pages with substituted product names; thin or duplicated content of that kind is both an SEO liability and a clinical risk. If a Q-code page you need is not yet on this site, consult CMS.gov directly.

Related resources

• 2026 CMS skin substitute reimbursement changes explained
• Skin substitute / CTP billing under the incident-to rule (2026)
• Graft size selection and wound measurement