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ICD-10 diagnosis code

F31.3 Bipolar affective disorder, current episode mild or moderate depression

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F31.3 is the ICD-10 code for Bipolar affective disorder, current episode mild or moderate depression. It is a four-character subcategory of F31 (Bipolar affective disorder), the most specific level in the WHO edition. It belongs to the block F30–F39 (Mood [affective] disorders) in Chapter V, Mental and behavioural disorders.

Code type
Subcategory (4 characters)
Chapter
V · F00–F99
Classification
WHO ICD-10, 2019 version

Definition

The patient is currently depressed, as in a depressive episode of either mild or moderate severity (F32.0 or F32.1), and has had at least one authenticated hypomanic, manic, or mixed affective episode in the past.

F31.3 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

F31.3Bipolär sjukdom, lindrig eller medelsvår depressiv episod

NorwayICD-10-NO

F31.3Bipolar affektiv lidelse med aktuell episode med mild eller moderat depresjon

  • F31.30Bipolar affektiv lidelse med aktuell episode med mild eller moderat depresjon uten somatisk syndrom
  • F31.31Bipolar affektiv lidelse med aktuell episode med mild eller moderat depresjon med somatisk syndrom
DenmarkICD-10-DK

DF313Bipolar affektiv sindslidelse i lettere eller moderat depressiv episode

  • DF313ABipolar type 1 affektiv sindslidelse i lettere eller moderat depressiv episode
FinlandICD-10-FI

F31.3Kaksisuuntaisen mielialahäiriön lievä tai kohtalainen masennusjakso

  • F31.30Kaksisuuntainen mielialahäiriö, masennusjakso ilman somaattista oireyhtymää
  • F31.31Kaksisuuntainen mielialahäiriö, masennusjakso ja somaattinen oireyhtymä
GermanyICD-10-GM

F31.3Bipolare affektive Störung, gegenwärtig leichte oder mittelgradige depressive Episode

FranceICD-10-FR

F31.3Trouble affectif bipolaire, épisode actuel de dépression légère ou moyenne

  • F31.30Trouble affectif bipolaire, épisode actuel de dépression légère ou moyenne, sans syndrome
  • F31.31Trouble affectif bipolaire, épisode actuel de dépression légère ou moyenne, avec syndrome
NetherlandsICD-10-NL

F31.3bipolaire affectieve stoornis, huidige episode licht of matig depressief

United StatesICD-10-CM

Listed through more specific codes:

  • F31.30Bipolar disorder, current episode depressed, mild or moderate severity, unspecified
  • F31.31Bipolar disorder, current episode depressed, mild
  • F31.32Bipolar disorder, current episode depressed, moderate

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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