G0477 Drug test(s), presumptive, any number of drug classes; any number of devices or procedures, (e.g., immunoassay) capable of being read by direct optical observation only (e.g., dipsticks, cups, cards, cartridges), includes sample validation when performed, per date of service

Short descriptor: Drug test presump optical

⚠ Terminated HCPCS Level II 2026
Terminated Code
G0477 was terminated as of 2016-12-31 and should not be reported for dates of service after that date. This page is retained for historical reference.
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G0477 is the HCPCS Level II code for Drug test(s), presumptive, any number of drug classes; any number of devices or procedures, (e.g., immunoassay) capable of being read by direct optical observation only (e.g., dipsticks, cups, cards, cartridges), includes sample validation when performed, per date of service (2026). It belongs to Section G — Procedures / Professional Services (Temporary). Under Medicare, its coverage status is: Carrier judgment. Part B pricing methodology: Priced subject to national limitation amount (clinical lab).

Classification & CMS Attributes

Medicare Coverage
Carrier judgment (code C)
Part B Pricing
Priced subject to national limitation amount (clinical lab) (indicator 21)
Type of Service
Diagnostic laboratory
Effective Date
2017-01-01
Termination Date
2016-12-31
2026 Maintenance
No change this year

References

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Reference G0477 with the canonical source and edition:

G0477 — Drug test(s), presumptive, any number of drug classes; any number of devices or procedures, (e.g., immunoassay) capable of being read by direct optical observation only (e.g., dipsticks, cups, cards, cartridges), includes sample validation when performed, per date of service. ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/G0477

Canonical URL: https://icd10codingpro.com/hcpcs-codes/G0477

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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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