ICD-10 Codes for Mental Health

Using ICD-10 Codes in Clinical Documentation

ICD-10-CM is the diagnostic coding system required on every insurance claim in the United States. Mental and behavioral health diagnoses live in the F-code chapter (F01–F99), and the code you select drives everything downstream: the medical necessity of the services you bill, the interventions reviewers expect to see in your notes, and how utilization review evaluates continued treatment.

Three habits keep your coding and documentation aligned:

• Code to the highest specificity. Many F-codes carry severity, episode, or subtype digits (e.g., F32.1 for a moderate single depressive episode). Unspecified codes invite claim reviews when a more specific code fits the clinical picture.
• Make the record support the code.Your intake and progress notes should document the DSM-5 criterion symptoms, duration, and functional impairment that justify the diagnosis — see documenting medical necessity.
• Update the code as the presentation changes. Severity specifiers, remission status, and episode counts should evolve with treatment rather than being carried forward unchanged.

For the procedure-code side of billing, pair these diagnoses with the right service codes from our CPT codes for psychotherapy guide, and see the ICD-10 overview for therapists for coding fundamentals and payer expectations.

Code Lookup by Diagnosis Family

Browse the tables below or filter by code, diagnosis name, or family. Diagnosis links open a full documentation guide for that code; treatment plan links open a matching template where one exists.