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ICD-10 diagnosis code

F31.6 Bipolar affective disorder, current episode mixed

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F31.6 is the ICD-10 code for Bipolar affective disorder, current episode mixed. 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 has had at least one authenticated hypomanic, manic, depressive, or mixed affective episode in the past, and currently exhibits either a mixture or a rapid alteration of manic and depressive symptoms.

What F31.6 excludes

Conditions that look similar but belong under another code.

  • single mixed affective episode F38.0

F31.6 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

F31.6Bipolär sjukdom, blandad episod

NorwayICD-10-NO

F31.6Bipolar affektiv lidelse med aktuell blandet episode

DenmarkICD-10-DK

DF316Bipolar affektiv sindslidelse i episode med blandingstilstand

  • DF316ABipolar type 1 affektiv sindslidelse i episode med blandingstilstand
FinlandICD-10-FI

F31.6Kaksisuuntaisen mielialahäiriön sekamuotoinen jakso

GermanyICD-10-GM

F31.6Bipolare affektive Störung, gegenwärtig gemischte Episode

FranceICD-10-FR

F31.6Trouble affectif bipolaire, épisode actuel mixte

NetherlandsICD-10-NL

F31.6bipolaire affectieve stoornis, huidige episode gemengd

United StatesICD-10-CM

Listed through more specific codes:

  • F31.60Bipolar disorder, current episode mixed, unspecified
  • F31.61Bipolar disorder, current episode mixed, mild
  • F31.62Bipolar disorder, current episode mixed, moderate
  • F31.63Bipolar disorder, current episode mixed, severe, without psychotic features
  • F31.64Bipolar disorder, current episode mixed, severe, with psychotic features

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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