ICD-10-CM - Medera

ICD-10-CM is the US standard for diagnosis coding. Maintained by NCHS + CMS, updated annually on October 1. Medera covers the full ICD-10-CM surface with calibration on the F-code (mental, behavioral, and neurodevelopmental disorders) chapter.

F-code chapter coverage

Range	Domain
`F01` – `F09`	Mental disorders due to known physiological conditions
`F10` – `F19`	Mental and behavioral disorders due to psychoactive substance use
`F20` – `F29`	Schizophrenia spectrum
`F30` – `F39`	Mood (affective) disorders
`F40` – `F48`	Anxiety, dissociative, stress-related disorders
`F50` – `F59`	Behavioral syndromes (eating, sleep)
`F60` – `F69`	Personality disorders
`F70` – `F79`	Intellectual disabilities
`F80` – `F89`	Pervasive and specific developmental disorders
`F90` – `F98`	Behavioral disorders with onset in childhood
`F99`	Unspecified mental disorder

Specificity expansion

The Medera engine surfaces specificity gaps as severity_qualifier_suggestions. Example:

{
  "code": "F32.0",
  "display": "MDD single episode, mild",
  "severity_qualifier_suggestions": ["F32.1 (moderate)", "F32.2 (severe without psychotic)"],
  "documentation_gap": "Severity qualifier (mild / moderate / severe) not explicitly documented"
}

Pair with CPT

For US outpatient BH encounters, pair ICD-10-CM with CPT 9079x (eval) / 9083x (psychotherapy) / 9921x (E/M). See Coding Systems for recommended pairings.

What’s next

CPT

Procedure + E/M.

HCPCS Level II

BH-specific H- and S-codes.

CDI

Documentation gaps.

Encounter coding

Use cases.

​F-code chapter coverage

​Specificity expansion

​Pair with CPT

​What’s next

CPT