
Substance Abuse Therapy Billing: CPT Codes and Coverage
CPT codes for substance abuse therapy including 90837, 90853 group sessions, ICD-10 F10–F19 code breakdown, and how mental health parity law applies.
2026-03-25 · 6 min read
Mental health ICD-10 diagnosis codes explained for therapists — clinical criteria, DSM-5 cross-references, and superbill usage.

CPT codes for substance abuse therapy including 90837, 90853 group sessions, ICD-10 F10–F19 code breakdown, and how mental health parity law applies.
2026-03-25 · 6 min read

F41.1 is the most commonly billed mental health diagnosis code. Learn when to use it, how it differs from F41.0 and F41.9, and documentation requirements.
2026-03-07 · 4 min read

A complete reference for F32 subcodes: F32.0 through F32.9, when to use F33 (recurrent), and why severity specificity matters for insurance processing.
2026-03-06 · 4 min read

F43.10, F43.11, and F43.12 explained — how PTSD codes differ from adjustment disorder codes, CPT pairings, and prior auth considerations.
2026-03-05 · 4 min read

F90.0 through F90.9 explained — which ADHD code to use, CPT codes for therapy and testing, and insurance coverage for ADHD evaluations.
2026-02-17 · 4 min read

Bipolar I (F31.x), Bipolar II (F31.81), cyclothymia (F34.0) — which codes to use, why specificity matters, and CPT codes for bipolar clients.
2026-02-16 · 4 min read