S3645 Hiv-1 antibody testing of oral mucosal transudate

Short descriptor: Hiv-1 antibody testing of or

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S3645 is the HCPCS Level II code for Hiv-1 antibody testing of oral mucosal transudate (2026). It belongs to Section S — Temporary National Codes (Non-Medicare). Under Medicare, its coverage status is: Not payable by Medicare. Part B pricing methodology: Not separately priced by Part B.

Classification & CMS Attributes

Medicare Coverage
Not payable by Medicare (code I)
Part B Pricing
Not separately priced by Part B (indicator 00)
Type of Service
Other medical items or services
Effective Date
2000-01-01
2026 Maintenance
No change this year

References

Cite This Page

Reference S3645 with the canonical source and edition:

S3645 — Hiv-1 antibody testing of oral mucosal transudate. ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/S3645

Canonical URL: https://icd10codingpro.com/hcpcs-codes/S3645

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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2026-01-01

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