hcpcs data

Q4359

Choriply, per square centimeter (add-on, list separately in addition to primary procedure)

Medicare: Carrier judgmentQ seriesAdded April 01, 2025

What Q4359 means

Q4359 (Choriply, per sq cm) belongs to the HCPCS Level II Q series (Temporary Codes). Its Medicare coverage status is Carrier judgment. Medicare coverage is left to the judgment of the local Medicare Administrative Contractor (MAC), so check your MAC's local coverage determinations.

Part B pricing: Price established using national RVU's.

Code details

Short description
Choriply, per sq cm
Coverage code
C = Carrier judgment
Pricing indicator
11 = Price established using national RVU's
Multiple pricing indicator
A = Not applicable as HCPCS priced under one methodology
Type of service
1 = Medical care
Action code
C = Change in long description of procedure or modifier code
Action effective date
January 01, 2026
Code added date
April 01, 2025
Data year
2026

Questions about Q4359

What is HCPCS code Q4359?

HCPCS code Q4359 is a Level II code in the Q series (Temporary Codes). Its full description is: "Choriply, per square centimeter (add-on, list separately in addition to primary procedure)"

Is Q4359 a CPT code?

No. Q4359 is a HCPCS Level II code maintained by CMS, not a CPT (Level I) code from the American Medical Association. People often search for it as a CPT code because both code sets are reported on the same claims.

Does Medicare cover HCPCS code Q4359?

The Medicare coverage code for Q4359 is "Carrier judgment". Medicare coverage is left to the judgment of the local Medicare Administrative Contractor (MAC), so check your MAC's local coverage determinations.

When was HCPCS code Q4359 added?

Q4359 was added to the HCPCS code set on April 01, 2025. The most recent action on it (Change in long description of procedure or modifier code) took effect on January 01, 2026.

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