Summary & Overview

HCPCS G2080: Additional 30-Minute Counseling for Medication Assisted Treatment

HCPCS Level II code G2080 represents each additional 30 minutes of counseling provided during a week of medication assisted treatment (MAT) by a Medicare-enrolled opioid treatment program. The code matters nationally as policymakers and payers focus on documenting and reimbursing comprehensive MAT services that combine pharmacotherapy with counseling to improve outcomes for people with opioid use disorder. Accurate use of G2080 supports measurement of service intensity, care coordination, and policy compliance within federally certified treatment settings.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for the code, how it augments primary weekly MAT billing, and what aspects of coverage and reporting are relevant across major national payers. The publication outlines benchmarks for service reporting where available, recent policy updates affecting MAT billing and OTPs, and operational considerations for documenting additional counseling time in weekly treatment units. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG2080HCPCS Level IImedication assisted treatmentopioid treatment programbehavioral counselingreimbursement codingadd-on serviceMAT counseling

Billing Code Overview

HCPCS Level II code G2080 describes each additional 30 minutes of counseling in a week of medication assisted treatment when the service is provided by a Medicare-enrolled opioid treatment program. The code is intended to be reported in addition to the primary weekly medication assisted treatment procedure code to capture extra counseling time beyond the base service.

Service type: Behavioral health counseling as part of medication assisted treatment for opioid use disorder
Typical site of service: Opioid treatment program (OTP) enrolled in Medicare

Clinical & Coding Specifications

Clinical Context

A 34-year-old patient enrolled in a Medicare-certified opioid treatment program presents for weekly medication-assisted treatment (MAT) with buprenorphine and counseling. The patient receives an initial 30-minute individual counseling session that is billed under the primary MAT counseling code for the week. During the same week, the patient returns later for an additional 30 minutes of focused counseling to address a relapse trigger identified at intake, review adherence, and adjust the behavioral plan. The additional session is documented as distinct, timed counseling in the same week and is billed separately using G2080 as an add-on for each additional 30 minutes. Typical workflow: intake by nursing to record vitals and medication administration, brief medication management by the MAT clinician, followed by certified counselor or physician-conducted psychotherapy/counseling sessions. Documentation includes start and stop times, counseling content, progress toward goals, coordination with medication administration, and statement that the service is provided by a Medicare-enrolled opioid treatment program.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when counseling required substantially greater time or intensity than typically required for `G2080` and supported by documentation.
`23`	Unusual anesthesia	Not typically used for counseling; include only if general anesthesia was required for an unrelated procedure performed same day.
`52`	Reduced services	Use when `G2080` service was partially reduced or not completed as originally intended.
`53`	Discontinued procedure	Use if the additional counseling was started but discontinued and counseling time was not completed.
`55`	Postoperative management only	Rare for outpatient counseling; use only if billing is limited to post-op management aspects related to MAT.
`62`	Two surgeons	Use only if two qualified clinicians provided simultaneous counseling services requiring this modifier (uncommon for `G2080`).
`78`	Return to OR after intraoperative complication	Not typical for counseling; include only for unrelated procedural contexts.
`80`	Assistant at surgery	Not applicable to counseling except in bundled cases with surgical services.
`95`	Synchronous telemedicine service rendered via real-time interactive audio and video	Use when the additional 30-minute counseling was delivered live via telehealth meeting Medicare telehealth standards.
`CQ`	Service furnished by a PA	Use when a physician assistant provided the counseling service under appropriate supervision rules.
`FY`	Service furnished by a nurse practitioner	Use when a nurse practitioner provided the counseling service consistent with state scope and Medicare enrollment.
`QX`	Service furnished under a qualified nonphysician health professional's supervision	Use when a qualifying clinician provided the counseling under required physician supervision rules.
`TG`	Via interactive audio and video telecommunications system (Medicare)	Use when counseling was delivered via an approved interactive telecommunication system.

Taxonomy Code	Specialty	Notes
`103T00000X`	Addiction Medicine	Physicians specializing in addiction medicine commonly lead MAT programs and supervise counseling services.
`2084P0800X`	Addiction Psychiatry	Psychiatrists focused on substance use disorders provide MAT oversight and integrate counseling.
`101Y00000X`	Nurse Practitioner	NPs certified in primary care or psychiatric-mental health commonly deliver counseling and medication management in MAT programs.
`367A00000X`	Counselor, Substance Abuse	Licensed substance abuse counselors provide the bulk of counseling sessions within opioid treatment programs.
`359S00000X`	Physician Assistant	PAs often provide counseling and medication management under supervising physicians in MAT settings.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F11.20`	Opioid dependence, uncomplicated	Primary diagnosis commonly treated in opioid treatment programs with medication-assisted treatment and counseling.
`F11.21`	Opioid dependence, in remission	Relevant for follow-up counseling sessions focusing on relapse prevention and maintenance.
`F11.10`	Opioid abuse, uncomplicated	Counseling sessions address misuse patterns and support transition to MAT.
`F11.23`	Opioid dependence with withdrawal	Counseling combined with medical management for withdrawal symptoms is a common scenario.
`F11.24`	Opioid dependence with opioid-induced mood disorder	Co-occurring mood symptoms addressed during counseling to optimize recovery
`F32.9`	Major depressive disorder, single episode, unspecified	Depression frequently co-occurs and is addressed during counseling within MAT programs
`Z79.891`	Long term (current) use of opiate analgesic	Documenting ongoing opioid therapy or history may be relevant to treatment planning in MAT
`Z71.51`	Counseling for substance use and abuse	General counseling code reflecting the therapeutic component billed with `G2080`.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90832`	Psychotherapy, 30 minutes with patient when performed with medical evaluation and management	Often used by clinicians for 30-minute psychotherapy sessions that may accompany MAT; may be billed when counseling is provided by eligible clinicians outside Medicare OTP billing rules.
`90834`	Psychotherapy, 45 minutes with patient	Used for longer individual psychotherapy sessions that may replace or supplement MAT counseling when clinically indicated.
`99406`	Smoking and tobacco use cessation counseling visit, intermediate, greater than 3 minutes up to 10 minutes	Ancillary behavioral counseling commonly delivered alongside MAT for patients who smoke; brief and not a substitute for `G2080`.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Used for medication management visits or coordination of care within the MAT program; may be billed when separate from counseling sessions.
`G2081`	Each additional 30 minutes of counseling in a week of medication assisted treatment by non-opioid treatment program providers (example add-on)	Related HCPCS add-on code used in conjunction with primary weekly MAT counseling code to report additional counseling time in the week.