Summary & Overview

HCPCS G2078: Methadone Take-Home Supply, Up to 7 Days

HCPCS Level II code G2078 covers the take-home supply of methadone—up to seven additional days—when furnished by a Medicare-enrolled opioid treatment program. This code captures an essential component of medication-assisted treatment for opioid use disorder, enabling programs to document and bill for authorized multi-day dispensing beyond single-day dosing. Nationally, G2078 is significant for tracking access to methadone maintenance, program workflow, and payer coverage of take-home policies that affect continuity of care.

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 code’s clinical role, typical service and site of care, and the payers commonly addressing coverage. The publication offers benchmarks and policy context relevant to billing and program operations, plus explanations of where data is available and where input data is missing. Topics include how G2078 is used alongside primary procedure codes for methadone dispensing, implications for outpatient OTPs, and considerations for national billing practices.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG2078HCPCS Level IImethadoneopioid treatment programtake-home medicationmedication-assisted treatmentoutpatientbilling

Billing Code Overview

HCPCS Level II code G2078 describes the provision of a take-home supply of methadone, specifically up to an additional seven-day supply provided by a Medicare-enrolled opioid treatment program. The service type is medication dispensing for opioid use disorder maintenance therapy, and the typical site of service is an opioid treatment program (OTP) or other outpatient clinic settings where methadone maintenance is administered and authorized for take-home dosing.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A patient with an established diagnosis of opioid use disorder attends a Medicare-enrolled opioid treatment program (OTP) for ongoing methadone maintenance therapy. The patient is clinically stabilized after supervised dosing and behavioral counseling visits; the treating OTP clinician documents treatment stability and authorizes additional take-home methadone doses per program policy and regulatory guidance. The clinic pharmacist or OTP staff dispenses an up to 7-day supply of take-home methadone under the OTP’s medication dispensing workflow. The service is billed to Medicare as an add-on supply line item using G2078 in addition to the primary OTP service code. Typical site of service is the opioid treatment program or specialty addiction treatment clinic that is enrolled with Medicare. The workflow includes patient assessment, verification of stability criteria, counseling documentation, medication preparation and labeling, patient education on storage and safe use, and final dispensing with a signature and medication administration record entry.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier — standard service	Use when no additional modifier is required and service is furnished under routine conditions.
`22`	Increased procedural services	Use when unusually extensive counseling or documentation was required to justify additional take-home dosing.
`23`	Unusual anesthesia — not typical here	Rarely applicable; not typically used for `G2078` but included on the allowed list.
`29`	Significant, separately identifiable evaluation and management service by same physician on same day	Use if a separate E/M visit is provided the same day and meets documentation for a distinct service.
`52`	Reduced services	Use when a reduced take-home supply or truncated service is provided compared with usual practice.
`59`	Distinct procedural service	Use when another distinct procedure or supply is billed the same day and documentation supports distinctness.
`78`	Return to OR following procedure — not typical here	Not routinely applicable; retained from provided list for completeness when applicable to surgical settings.
`82`	Assistant at surgery — not applicable to medication dispensing	Not typically used for `G2078` but listed in allowed modifiers.
`QX`	Registered nurse practitioner, assistant-at-service (direction by surgeon) — when applicable	Use if services are furnished by a qualified designee under program rules and reporting of supervision is required.
`QY`	Certified registered nurse anesthetist — not applicable	Included in source list; not routinely used for this code.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services in ambulatory surgical center	Use when applicable per payer policy for non-physician professional billing in the OTP setting.
`CO`	Services performed in whole or part by an employee of a federal agency	Use when the performing clinician is a federal employee and payer rules require reporting.
`CQ`	Service furnished by a physician or other practitioner subject to certain state scope-of-practice rules	Use when local scope-of-practice reporting is required.
`TG`	Service provided under a federally qualified health center (FQHC) or look-alike arrangement	Use when the OTP operates within an FQHC billing model and payer policy requires the modifier.

Taxonomy Code	Specialty	Notes
208D00000X	Addiction Medicine	Physicians providing outpatient methadone maintenance in OTPs.
208000000X	Psychiatry & Neurology (Psychiatry)	Psychiatrists supervising medication-assisted treatment and behavioral health.
174400000X	Substance Use Disorder Treatment Clinician	Clinicians specializing in substance use disorder counseling and OTP operations.
363L00000X	Pharmacist	Pharmacists involved in dispensing and counseling for methadone in OTP settings.
367500000X	Nurse Practitioner	Nurse practitioners providing follow-up, assessment, and prescribing in OTPs.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F11.20`	Opioid dependence, uncomplicated	Primary diagnosis supporting methadone maintenance and eligibility for OTP take-home dosing.
`F11.21`	Opioid dependence, in remission	Used when patient has achieved remission but continues in a methadone maintenance program and may receive take-home doses.
`F11.10`	Opioid abuse, uncomplicated	Some OTP programs may code opioid abuse where appropriate; supports use of medication-assisted treatment.
`Z79.891`	Long term (current) use of opiate analgesic	Indicates chronic opiate agonist therapy which may accompany methadone maintenance documentation.
`F11.23`	Opioid dependence with withdrawal	Relevant when assessing stability and needing supervised dosing rather than take-home; informs clinical decision-making.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`90832`	Psychotherapy, 30 minutes with patient	Common counseling visit that may occur on the same day as dispensing and supports documentation for take-home dosing.
`90834`	Psychotherapy, 45 minutes with patient	Longer psychotherapy session used in OTP programs that may precede authorization of take-home supplies.
`99406`	Smoking and tobacco use cessation counseling, intermediate, 3-10 minutes	Example of brief behavioral intervention codes used in substance use treatment workflows when counseling topics include harm reduction.
`96127`	Brief emotional/behavioral assessment (e.g., depression inventory)	Brief screenings used to assess stability and treatment progress prior to granting take-home privileges.
`G0378`	Direct skilled nursing services of a licensed nurse (LPN or RN) in the home health or clinic setting	Used when skilled nursing services are billed in conjunction with OTP operations for medication management or observation.
`H0020`	Alcohol and/or drug services; methadone administration and/or service (per day) — HCPCS Level II (commonly used in behavioral health settings)	Represents the primary OTP daily service under which `G2078` (take-home supply) is billed as an add-on line item.