Updated APG Billing Guidance for Hepatitis C Virus (HCV) Treatment in Part 822 OASAS Certified Outpatient Programs (Clinic, Opioid Treatment Programs, Outpatient Rehab and Comprehensive Outpatient Programs)

IMPACTED PLANS: Medicaid, HIV SNP, HARP

TO: OASAS Providers

Dear MetroPlusHealth Provider,

The Department of Health and Office of Addiction and Services and Supports (OASAS) has released updated APG Billing Guidance for Hepatitis C Virus (HCV) treatment in OASAS Certified Outpatient Programs (Clinic, OTP, and Comprehensive Outpatient Programs) for the impacted set of services outlined below, effective Jan 1, 2025.

  • Physical Health – Evaluation & Management (E/M) Services
  • Hepatitis A and/or Hepatitis B Vaccines
  • Preventive Counseling Services
  • Directly Observed Therapy (DOT)

E&M Procedure Codes for Physical Health Claims for HCV Related E/M Services:

CPT CodeDescription
99202 – 99205New Patient, Evaluation and Management (E&M)
99211 – 99215Existing Patient, Evaluation and Management (E&M)
99382 – 99387New Patient, Physical Exam
99392 – 99397Existing Patient, Physical Exam

*Physical Health Rate Codes:

SettingRegionPH Rate CodeAPG Number
Freestanding OTPsDownstate1471636
Hospital Based OTPsDownstate1555636

Notes:
*Physical Health Rate code for OTP and IOS OTP are the same.
HCV Treatment falls under Physical Health E&M Services. If billed on the same date of service, an E/M visit can be reimbursed separately from behavioral health claims when HCV is the reason for the visit.

Diagnosis (Dx) Codes for HCV Treatment Billing:

  • Use as Primary Dx Code when HCV is the reason for the visit.
Diagnosis CodeDescription
B1710Acute Hepatitis C without hepatic coma
B182Chronic viral Hepatitis C
B1920Unspecified viral Hepatitis C without hepatic coma

Note: If these Dx codes are primary on the claim and an E/M code is included, the claim will generate APG 636 – Hepatitis without Coma.

Hepatitis A and/or B Vaccine Billing Guidance for OTP services includes:

CPT CodeDescription
90746Hepatitis B Vaccine, Adult Dosage, 3 Dose Schedule (IM Use)
90636Hepatitis A & Hepatitis B Vaccine, Adult Dosage (IM Use)
90632Hepatitis A Vaccine, Adult Dosage (IM Use)

Note: To be properly reimbursed, the claim line for the vaccine must include the provider’s actual cost in the charges field. Also, we will require an invoice to adjudicate these claims. If sending a paper claim, please include the invoice. If sending an electronic claim, we will pend the claim and request an invoice which should be faxed to 212-908-8789 with a cover sheet indicating claim number, member name and member ID so we can match your invoice to the claim.

Billing Codes for Preventive Counseling:

CPT CodeDescriptionUnits Limit
99401Preventive Counseling1
99402Preventive Counseling1
99403Preventive Counseling1
99404Preventive Counseling1
99411Group Preventive Counseling1
99412Group Preventive Counseling1

Note: Preventive Counseling billed separately from E/M services must be distinct and well-documented, and claims must list a Medicaid enrolled practitioner as the rendering provider.

Billing Codes and Criteria for DOT Services:

Setting</tdhRegionHCPCS CodeRate CodeAPG Weight
FreestandingDownstateH0033/H00201564 or 14710.1179
HospitalDownstateH0033/H00201567 or 15550.1179
  • Billing Criteria for H0033/H0020
    • H0033 can be billed twice per visit if the patient receives buprenorphine and another oral medication requiring DOT.
    • H0033 is reimbursable under both Behavioral Health (BH) and Medical Visit rate codes.
    • H0033 is reimbursable under any rate code.
    • H0020 is only for methadone and cannot be used for HCV medications

Please refer to the OASAS APG Manual for State guidance and more information.

If you have any questions regarding this memo, please contact MetroPlusHealth at [email protected].

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last updated: November 24, 2025