Community Support Team (CST)
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Defines Medicaid coverage, eligibility, clinical criteria, and service requirements for Community Support Team (CST) intensive community-based mental health and substance use services for beneficiaries in North Carolina.
Admission Criteria - added 'or equivalent federal Tribal code'.
Removed unmanaged units and language referencing prior approval, authorizations, initial authorizations, and reauthorizations to comply with federal regulation.
Federally recognized tribal and Indian Health Service providers may be exempt from one or more compliance items and may be entitled to alternate reimbursement methodologies under Federal Law and regulations.
Team Composition and Provider Qualifications updated to add 'or equivalent federal Tribal code' and remove certain previously listed licensure names.
Coverage and Medical Necessity Criteria
Initial Coverage Criteria
Medicaid shall cover Community Support Team (CST) when ALL following criteria are met:
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Admission Criteria
Admission Criteria
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Continued Stay Criteria
Continued Stay Criteria
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Discharge Criteria
Transition and Discharge
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General Criteria
General medical necessity requirements
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Continued Stay
Continued Stay Criteria — Covered when ALL of the following are met
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Transition and Discharge
Transition and Discharge — beneficiary meets discharge if ANY ONE applies
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Not Covered
Not covered — general and Medicaid-specific
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Requirements and Limitations
Requirements and limitations
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Covered services — CST requirements
Covered when services are delivered by a CST meeting composition, training, and program requirements
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Operational and Service Criteria
Covered when service and operational criteria are met
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A sole diagnosis of intellectual and developmental disability does not qualify a beneficiary for Community Support Team (CST) coverage. CST is limited to beneficiaries with a DSM-5 mental health or substance use disorder diagnosis and requires documented functional impairment related to that diagnosis in the community.
The following activities are not covered unless they are directly tied to planned therapeutic interventions documented in the beneficiary's Person-Centered Plan: transportation for the beneficiary or family members, any habilitation activities, and time spent in recreational activities unless those activities are specifically linked to planned social skill development. Services must be explicitly identified on the PCP to be eligible for reimbursement.
Clinical and administrative supervision provided to CST staff is considered part of the program's indirect costs and is included in the CST rate. Such supervision must not be billed separately as a discrete reimbursable service.
North Carolina Medicaid will not reimburse for conversion therapy under this policy.
Services that do not meet the policy's eligibility requirements in Section 2.0 or the clinical criteria in Section 3.0 are not covered. Coverage is also excluded for services that duplicate another provider's offerings, are experimental or investigational, or are part of a clinical trial. Additionally, specific activities listed in policy (for example, transportation, habilitation, recreational activities not tied to PCP goals, childcare, educational substitution, interventions not on the PCP, room and board, and services not rendered) are not reimbursable.
Billing Codes, Units, and Related Limits
| H2015 | Community psychiatric supportive treatment; per 15 minutes |
| Unlisted CPT/HCPCS | Use appropriate unlisted procedure/service code with special report when no specific code exists |
| HT | HCPCS Modifier 1 for various provider roles (Licensed Team Lead, Qualified Professional, NC Peer Support Specialist, Paraprofessional) |
| HO | HCPCS Modifier 2 for Licensed Team Lead |
| HF | HCPCS Modifier 2 for Clinical Addictions roles |
| HN | HCPCS Modifier 2 for Qualified Professional or Associate Professional |
| U1 | HCPCS Modifier 2 for NC Peer Support Specialist |
| HM | HCPCS Modifier 2 for Paraprofessional |
Provider Requirements, Documentation, and Billing Actions
EPSDT — Prior approval/limit exception for beneficiaries under 21
EPSDT: Prior approval exceptions for beneficiaries under 21 — When the beneficiary is under 21, EPSDT (42 U.S.C. §1396d(r)) may require coverage of services otherwise limited if the provider documentation demonstrates the service is medically necessary to correct or ameliorate a condition identified through screening. Providers should document how the requested service meets EPSDT criteria when prior limits would otherwise apply.
- EPSDT may supersede policy limits for beneficiaries <21 when medically necessary.
- Documentation must show how the service corrects or ameliorates a defect, illness, or condition identified through screening.
Prior Approval — Not required for CST
Medicaid does not require prior approval for CST services. Language in the policy removing references to prior approval, authorization, initial authorizations, reauthorizations, and unmanaged units aligns with 42 C.F.R. §438.900 and related federal parity requirements; providers must follow the policy effective dates and any transitional guidance in the History section.
- Medicaid shall not require prior approval for CST services.
- References to prior authorization and unmanaged units were removed effective 2025-01-01 to comply with federal regulation.
Indirect cost billing risk — Supervision covered as indirect cost
Clinical and administrative supervision of CST staff is covered as an indirect cost and must not be billed separately. Billing supervision or supervision-related activities as distinct billable services may lead to denial or non-payment.
- Clinical and administrative supervision is an indirect cost — do not bill separately.
- Separately billing supervision may trigger claim denial or recoupment.
Unit billing compliance and claim type
Billing units and code specificity requirements: H2015 is billed per 15-minute unit (1 unit = 15 minutes). All claims must follow National Coding Guidelines and the applicable billing form (CMS-1500 or UB-04). Use the most specific CPT/HCPCS/ICD-10 code that supports medical necessity.
- H2015 — Billing unit = 1 unit = 15 minutes.
- Claims: Professional (CMS-1500/837P) or Institutional (UB-04/837I) per National Uniform Billing Guidelines.
- Use most specific CPT/HCPCS and ICD-10-CM codes that support medical necessity.
Coding and medical necessity documentation
Coding and medical necessity documentation requirements — Report ICD-10-CM to the highest level of specificity that supports medical necessity and use current editions in effect at time of service. Procedural codes (CPT/HCPCS) and UB-04 revenue codes must accurately and completely describe the service; if no specific code exists use the appropriate unlisted code. Service notes and the Person-Centered Plan (PCP) must contain required assessment and progress information to substantiate medical necessity.
- Report ICD-10-CM and PCS codes to the highest specificity that supports medical necessity.
- Use current CPT/HCPCS/UB-04 editions in effect at time of service; use unlisted codes only when no specific code exists.
- Service records must include full service notes and PCP documentation elements (see documentation callout).
Consideration of alternative interventions
Service selection must consider less intensive alternatives — Coverage requires the beneficiary be capable of developing skills and responding to therapeutic interventions, and there must be no evidence that alternative interventions would be more effective based on community practice standards. Providers must document why CST is preferred over equally effective, more conservative, or less costly statewide options.
- Coverage requires beneficiary capability to develop skills and respond favorably to interventions.
- Document that no equally effective, more conservative, or less costly treatment is available statewide.
- Demonstrate, in the PCP and service notes, why alternate interventions are not more effective.
Required documentation and service note contents
Required documentation for each billed contact: a full service note for each date of service signed by the staff who provided the service. Notes must include beneficiary identifiers, date, service name, contact type and place, purpose tied to PCP goals, intervention description, duration, assessment of effectiveness and progress, signature with credentials/title, and page identifiers. The staff who provides the service is responsible for documentation; a qualified professional is not required to countersign notes written by non‑QP staff.
- Full service note required for each contact/date of service; may report multiple interventions in one note.
- Service note elements: beneficiary name, Medicaid ID, date, service name, contact type, place of service, purpose related to PCP goals, description of intervention, duration, assessment of effectiveness/progress, signature and credentials, and page identifiers.
- PCP and documented discharge plan must be discussed with beneficiary and documented in the record.
Background and Policy Scope
Community Support Team (CST) is an intensive, team-based community rehabilitation service for adults with DSM-5 mental health or substance use disorders who have complex needs. CST combines direct treatment, restorative interventions, psychoeducation, crisis de-escalation, case coordination, and ongoing service planning delivered by a coordinated multidisciplinary team. Teams maintain defined composition and staffing ratios to restore functioning across life domains, support community integration, reduce crises, and provide 24/7 crisis response capability.
Key Definitions
Level of Care and Service Intensity
Community-based intensive rehabilitation (CST)
Community-based intensive rehabilitation (CST) — level of care criteria
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Outpatient / Community-based CST
Outpatient / Community-based CST — level of care criteria
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Outpatient / intensive community-based
Outpatient / intensive community-based — level of care criteria
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Community-based (CST)
Community-based (CST) — level of care criteria (tribal equivalency updates present)
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Services and Interventions Included
Team-based community rehabilitation
Team-based community rehabilitation — modality
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Community Support Team services
Community Support Team services — core service features
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Psychosocial therapies and evidence-based behavioral interventions
Psychosocial therapies and evidence-based behavioral interventions
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Community-based rehabilitation and support
Community-based rehabilitation and support — service delivery expectations
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Visit Limits, Transition Allowances, and Unit Rules
Document Changes and Effective Dates
Admission criteria and provider qualification language updated to add 'or equivalent federal Tribal code' and team composition definitions revised; authorization terminology changed to episode-of-care and unmanaged units and prior approval/authorization language removed to align with federal parity and 42 CFR §438.900.
Staff definitions amended effective 01/01/2024 by 10A NCAC 27G .0104, removing certain licensure/certification names (LPC/LPCA and CSAC) from Team Composition.
Policy template language updated due to North Carolina Health Choice Program's move to Medicaid; policy posted 04/15/2023 with an effective date of 04/01/2023.
Attachment A amended and policy changes effective the date related 10A NCAC 27G rule finalized; 'Certified Alcohol and Drug Counselor' added to comply with NC Session Law 2019-240 (SB 537).
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