G2077 HCPCS code: Periodic assessment; assessing periodically by an otp practitioner and includes a review of moud dosing, treatment response, other substance use disorder treatment needs, responses and patient-identified goals, and other relevant physical, nutrition and psychiatric treatment needs and goals; may be informed by administration of a standardized, evidence-based assessment, or the need and interest for harm reduction interventions and recovery support services (provision of the services by a medicare-enrolled opioid treatment program); list separately in addition to each primary code

G2077 is the HCPCS Level II code for periodic assessment; assessing periodically by an otp practitioner and includes a review of moud dosing, treatment response, other substance use disorder treatment needs, responses and patient-identified goals, and other relevant physical, nutrition and psychiatric treatment needs and goals; may be informed by administration of a standardized, evidence-based assessment, or the need and interest for harm reduction interventions and recovery support services (provision of the services by a medicare-enrolled opioid treatment program); list separately in addition to each primary code. In 2024 Medicare paid an average of $119.65 per service for G2077 across 39,211 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. Medicare volume rose 38% from 2022 to 2024 (28,504 to 39,211 services). In 2024, about 696 clinicians billed Medicare for G2077 for 12,352 beneficiaries; Maryland, Ohio, Massachusetts accounted for 39% of services.

Code details

Who bills G2077 (2024)

Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.

Medicare utilization for G2077, 2022–2024

States with the most G2077 services (2024)

Medicare policy articles for this code

• A59718: Billing and Coding: Opioid Treatment Programs (Palmetto GBA (MAC - Part A, MAC - Part B))

Covered diagnoses (39 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

Showing 10 of 39. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for G2077

• January 2026: Descriptor revised (Was: Periodic assessment; assessing periodically by an otp practitioner and includes a review of moud dosing, treatment response, other substance use disorder treatment needs, responses and patient-identified goals, and other relevant physical and psychiatric treatment needs and goals; assessment may be informed by administration of a standardized, evidence-based social determinants of health risk assessment to identify unmet health-related social needs, or the need and interest for harm reduction interventions and recovery support services (provision of the services by a medicare-enrolled opioid treatment program); list separately in addition to each primary code)
• 2020-01-01: G2077 added to HCPCS Level II
• Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01

Frequently asked questions

What is HCPCS code G2077?

G2077 is the HCPCS Level II code for periodic assessment; assessing periodically by an otp practitioner and includes a review of moud dosing, treatment response, other substance use disorder treatment needs, responses and patient-identified goals, and other relevant physical, nutrition and psychiatric treatment needs and goals; may be informed by administration of a standardized, evidence-based assessment, or the need and interest for harm reduction interventions and recovery support services (provision of the services by a medicare-enrolled opioid treatment program); list separately in addition to each primary code. Short descriptor: "Periodic assessment".

How much does Medicare pay for G2077?

In 2024, the average Medicare payment was $119.65 per service (average allowed $120.83).

Does Medicare cover G2077?

Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.

Which diagnoses support coverage for G2077?

Medicare policy articles that cite G2077 list 39 covered ICD-10-CM diagnosis codes across 1 article. The most cited include F11.10 (Opioid abuse, uncomplicated), F11.11 (Opioid abuse, in remission), F11.120 (Opioid abuse with intoxication, uncomplicated). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

Related G20 codes

• G2000 — Blinded administration of convulsive therapy procedure, either electroconvulsive therapy (ect, current covered gold standard) or magnetic seizure therapy (mst, non-covered experimental therapy), performed in an approved ide-based clinical trial, per treatment session
• G2001 — Brief (20 minutes) in-home visit for a new patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2002 — Limited (30 minutes) in-home visit for a new patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2003 — Moderate (45 minutes) in-home visit for a new patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2004 — Comprehensive (60 minutes) in-home visit for a new patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2005 — Extensive (75 minutes) in-home visit for a new patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2006 — Brief (20 minutes) in-home visit for an existing patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2007 — Limited (30 minutes) in-home visit for an existing patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2008 — Moderate (45 minutes) in-home visit for an existing patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2009 — Comprehensive (60 minutes) in-home visit for an existing patient post-discharge. for use only in a medicare-approved cmmi model. (services must be furnished within a beneficiary's home, domiciliary, rest home, assisted living and/or nursing facility within 90 days following discharge from an inpatient facility and no more than 9 times.)
• G2010 — Remote evaluation of recorded video and/or images submitted by an established patient (e.g., store and forward), including interpretation with follow-up with the patient within 24 business hours, not originating from a related e/m service provided within the previous 7 days nor leading to an e/m service or procedure within the next 24 hours or soonest available appointment
• G2011 — Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention, 5-14 minutes

Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.

Next steps

• Run a reimbursement report for a device billed under G2077
• Watch G2077 for fee, coverage and descriptor changes
• Build a full Medicare revenue model for G2077

Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.

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