6B80.0

ICD-11 MMS 2026-01

Anorexia Nervosa with significantly low body weight

Description

Anorexia Nervosa with significantly low body weight meets all definitional requirements for Anorexia Nervosa, with BMI between 18.5 kg/m2 and 14.0 kg/m² for adults or between the fifth percentile and the 0.3 percentile for BMI-for-age in children and adolescents.

Exclusions from above levels

  • MG43.7 – Anorexia
  • QE62 – Uncomplicated bereavement
  • QE84 – Acute stress reaction

Child codes

  • 6B80.00 – Anorexia Nervosa with significantly low body weight, restricting pattern
  • 6B80.01 – Anorexia Nervosa with significantly low body weight, binge-purge pattern
  • 6B80.0Z – Anorexia Nervosa with significantly low body weight, unspecified

Sibling codes

  • 6B80.1 – Anorexia Nervosa with dangerously low body weight
  • 6B80.2 – Anorexia Nervosa in recovery with normal body weight
  • 6B80.Y – Other specified anorexia Nervosa
  • 6B80.Z – Anorexia Nervosa, unspecified

Foundation entity

Anorexia Nervosa with significantly low body weight – http://id.who.int/icd/entity/306103450

Allowed postcoordination axes

Part of: 6B80: Anorexia Nervosa › 06: Mental, behavioural or neurodevelopmental disorders