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    v1.0.30
    OpenPayerBilling CodesAlcohol and Drug Abuse TreatmentHCPCS hcpcs-h2020-therapeutic-behavioral-services-per-diem
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    HCPCS H2020: Therapeutic Behavioral Services, Per Diem

    HCPCS Level II code H2020 represents therapeutic behavioral services, per diem, covering one full day of structured therapeutic behavioral interventions typically provided in outpatient behavioral health programs, community mental health settings, or other non-residential treatment facilities; the service type is therapeutic behavioral services and the typical site of service is outpatient or community-based behavioral health program.

    For related coverage guidance, see recent payer policy updates: Home Health Care Services - Medical Policy, Adult Foster Care, Group Adult Foster Care Clinical Coverage Criteria.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    Service: H2020 — Therapeutic behavioral services, per diem.

    A typical patient is a school-aged child or adolescent diagnosed with moderate to severe behavioral health conditions who requires structured, daily therapeutic behavioral interventions delivered outside an inpatient psychiatric unit. For example, a 12-year-old with F90.0 (Attention-deficit hyperactivity disorder, predominantly inattentive type) and escalating oppositional behaviors is referred by a pediatrician and the child’s public school for an intensive behavioral program to reduce unsafe behaviors at home and in the classroom. A licensed behavioral health provider conducts an intake assessment, develops an individualized treatment plan, and delivers or oversees daily therapeutic behavioral services including behavior modification, skills training, caregiver coaching, and crisis mitigation. Services are furnished in settings such as a community-based behavioral day program, school-based health center, or intensive outpatient behavioral program. Documentation includes daily progress notes, treatment plan updates, behavior tracking data, measurable goals, parental consent, staff-to-patient ratios, and any coordination notes with schools or primary care.

    Workflow steps: intake assessment and baseline functional behavior assessment; treatment plan authorization and payer pre-certification if required; daily delivery of therapeutic behavioral services captured per diem with attendance and activity logs; regular interdisciplinary team reviews and periodic re-assessment; discharge planning when treatment goals are met or level of care changes. Payers commonly involved include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare for eligible beneficiaries.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    90791Psychiatric diagnostic evaluation (no medical services)Used at intake to establish diagnosis and treatment needs prior to enrollment in a H2020 per diem program.
    90832Psychotherapy, 30 minutes with patientIndividual therapy that may be provided in addition to per diem behavioral services on the same day when separate psychotherapy is clinically necessary.
    90853Group psychotherapy (other than of a multiple-family group)Group therapeutic sessions commonly scheduled within a day program day and billed separately when allowed by payer rules.
    99406Smoking and tobacco use cessation counseling, intermediate, 3–10 minutesAncillary counseling services that may occur during the program day for eligible patients.
    99492Initial psychiatric collaborative care management, first 70 minutes in the first calendar monthUsed when collaborative care models are in place in coordination with the per diem program; documents care management activities that complement per diem services.

    Related Modifiers

    5 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    95Modifier 95 indicates that a service was provided via synchronous, real‑time audio‑video telehealth rather than in‑person. Per CMS, AAPC and professional associations, append modifier 95 to claim…- Use modifier 95 to indicate a service was furnished via synchronous, real‑time audiovisual telehealth (a live audio‑video conference between patient and provider) rather than in‑person. - Pair…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    103K00000X
    101Y00000X
    2084P0800X
    207Q00000X
    363L00000X
    2080P0202X
    261QH0700X
    376K00000X

    Related Payer Policy Updates

    Specialty: Home Health & Hospice1 / 3

    10 rows

    PolicyPayerEffective Date
    Home Health Care Services - Medical PolicyHealth-New-England2027-02-01
    Adult Foster Carefallon_community_health_plan_inc2027-01-27
    Group Adult Foster Care Clinical Coverage Criteriafallon_community_health_plan_inc2027-01-01
    Hospice and Palliative Care- Medical PolicyHealth-New-England2026-12-01
    Home Health Care Payment Policyfallon_community_health_plan_inc2026-12-01
    Private Duty Nursing Services (for Ohio Only)Colorado Rocky Mountain Health Plans2026-11-01
    Personal Care Attendant and Personal Care Management Agency ServicesMass General Brigham Health Plan2026-11-01
    Private Duty Nursing in the Home SettingAnthem2026-10-01
    Home Health, Skilled, and Custodial Care Services (for Nebraska Only)UnitedHealthcare2026-10-01
    Home Health, Skilled, and Custodial Care Services (for Tennessee Only)UnitedHealthcare2026-10-01

    Related Codes

    HCPCS-H0001-ALCOHOL-DRUG-ASSESSMENT-OUTPATIENT

    HCPCS H0001: Alcohol and/or Drug Assessment

    HCPCS-H0002-BEHAVIORAL-HEALTH-SCREENING-ADMISSION-ELIGIBILITY

    HCPCS H0002: Behavioral Health Screening for Treatment Admission

    HCPCS-H0003-ALCOHOL-DRUG-SCREENING-LAB-ANALYSIS

    HCPCS Level II H0003: Alcohol and/or Drug Screening Laboratory Analysis

    HCPCS-H0004-BEHAVIORAL-HEALTH-COUNSELING-15-MINUTE

    HCPCS H0004: Behavioral Health Counseling and Therapy, per 15 Minutes

    HCPCS-H0005-GROUP-COUNSELING-SUBSTANCE-USE-CLINICIAN

    HCPCS H0005: Alcohol and/or Drug Group Counseling by Clinician

    HCPCS-H0006-ALCOHOL-DRUG-CASE-MANAGEMENT

    HCPCS H0006: Alcohol and/or Drug Services, Case Management

    HCPCS-H0007-ALCOHOL-DRUG-CRISIS-INTERVENTION-OUTPATIENT

    HCPCS H0007: Alcohol and/or Drug Crisis Intervention (Outpatient)

    HCPCS-H0008-SUB-ACUTE-DETOXIFICATION-HOSPITAL-INPATIENT

    HCPCS H0008: Alcohol and/or Drug Sub-Acute Detoxification (Inpatient)

    HCPCS-H0009-ACUTE-DETOXIFICATION-HOSPITAL-INPATIENT

    HCPCS Level II H0009: Acute Detoxification, Hospital Inpatient

    HCPCS-H0010-SUB-ACUTE-RESIDENTIAL-DETOXIFICATION

    HCPCS H0010: Sub-Acute Detoxification, Residential Inpatient

    Showing 1–10 of 93

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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