What changes between individual and group billing?
The entire service configuration can change, not only one modifier. Check the covered definition, eligible facilitator, member count, staff ratio, code, modifier, unit basis, rate, authorization, telehealth rules, and documentation separately for each setting.
| Review point | Individual service | Group service |
|---|---|---|
| Coding | May use H0038 or another state code | May use H0038 HQ, a different code, or a program-specific method |
| Unit basis | Often tied to participant service time | May be per participant, per group interval, per event, or another published method |
| Rate | May be a full individual unit rate | May be a distinct group or per-participant rate |
| Staffing | Rendering peer and supervision rules | Facilitator credentials, co-facilitator, ratio, and group-size rules may apply |
| Documentation | One individualized service record | Group record plus individualized attendance, response, goal connection, and plan when required |
| Telehealth | May be allowed by modality | May be restricted even when individual telehealth is covered |
Does HQ always mean group peer support?
CMS defines the HCPCS modifier HQ as “group setting,” but a payer must instruct providers to use it with the applicable service. The descriptor does not establish that H0038 HQ is covered, payable, or the correct code in every Medicaid program.
The current CMS HCPCS file defines H0038 as self-help/peer services, per 15 minutes and defines HQ as group setting. Code-set meaning and coverage policy are different questions: the state and payer still decide which combinations they accept.[1]
How do state approaches differ?
North Carolina and California illustrate the variation. North Carolina’s peer policy lists H0038 for individual and H0038 HQ for group services. California’s current FAQ says the named Medi-Cal systems use H0025 for peer group services and limits those groups to two through twelve members.
Do not copy either state’s rule into another jurisdiction. Use the examples to design a flexible workflow that stores the source, effective date, program, code, modifiers, group rules, and rate independently.[2][3]
What should a group service record contain?
Document the shared group event once and each participant’s service evidence separately when required. A roster alone usually cannot show an individual’s eligibility, goal connection, response, or progress.
| Layer | Common fields |
|---|---|
| Group-level record | Topic, purpose, date, start/end, modality, location, facilitator, co-facilitator, attendance count, curriculum or activities |
| Participant-level record | Attendance, eligible duration, goal connection, relevant peer support, individualized response, progress or barrier, plan, signature |
How should group units and rates be calculated?
Use only the payer’s written method. Never multiply a group duration by the number of attendees, divide an individual rate by the group size, or assume every attendee receives the same units unless the applicable instructions say so.
- Confirm whether units are reported per participant, per group interval, per event, or under another methodology.
- Apply the published rounding or completed-unit rule to eligible service time only.
- Exclude late arrival, early departure, breaks, non-covered activity, and overlapping service time as the payer requires.
- Apply group-size, staffing-ratio, daily, authorization, and benefit limits before submission.
- Reconcile each claim line to the attendance and participant-level documentation.
Frequently asked questions
Is H0038 always individual peer support?
No. H0038 has a national descriptor, but states and payers define how it is covered and whether modifiers or other codes distinguish the service setting.
Is H0038 HQ always the group code?
No. HQ means group setting in the HCPCS code set, but some Medicaid programs use another code or methodology. California’s listed Medi-Cal programs are a current example using H0025 for peer groups.
Can one group note support every participant claim?
A group-level record may document shared facts, but participant-level evidence is often required. Confirm the current rule and never duplicate an individualized response that did not occur.
Can group peer support be delivered by telehealth?
Sometimes. Group telehealth may have different restrictions from individual service. Verify the benefit, modality, platform, consent, location, modifier, POS, group-size, and documentation rules.
Authoritative sources
These were reviewed for this page. Open the current source and verify its effective date before relying on it operationally.
- HCPCS Quarterly Update: Centers for Medicare & Medicaid Services. Current official HCPCS Level II code files. The July 2026 effective file defines H0038 as self-help/peer services, per 15 minutes.
- Clinical Coverage Policy 8G: Peer Support Services: North Carolina Medicaid. State example distinguishing H0038 individual and H0038 HQ group services and defining a 15-minute billing unit.
- Medi-Cal Peer Support Services Specialist Program FAQ: California Department of Health Care Services. Current state example showing that a state may use H0025 rather than H0038 HQ for peer groups and may impose program-specific rules.
- Frequently Asked Questions on Medicaid and CHIP Coverage of Peer Support Services: Centers for Medicare & Medicaid Services. Federal baseline for state-designed peer support benefits, qualifications, supervision, and plans of care.