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ICD-10 Code F06.3: Mood disorder due to known physiological condition

F06.3 is an ICD-10 diagnosis entry used to group records related to Mood disorder due to known physiological condition. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

When is it used?

  • May be used when a clinician documents mood disorder due to known physiological condition in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F01-F09Mental disorders due to known physiological conditions
category
F06Other mental disorders due to known physiological condition
currentF06

Official coding notes

Excludes2 (may code together if documented)
  • mood disorders due to alcohol and other psychoactive substances (F10-F19 with .14, .24, .94)
  • mood disorders, not due to known physiological condition or unspecified (F30-F39)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
F06.3
Replacement codes
F06.30 — Mood disorder due to known physiological condition, unspecifiedF06.31 — Mood disorder due to known physiological condition with depressive featuresF06.32 — Mood disorder due to known physiological condition with major depressive-like episodeF06.33 — Mood disorder due to known physiological condition with manic featuresF06.34 — Mood disorder due to known physiological condition with mixed features

Common synonyms

Mood disorder due to known physiological condition

Frequently asked questions

Code details

CodeF06.3
SystemICD10
Display nameMood disorder due to known physiological condition
ChapterMental, Behavioral and Neurodevelopmental disorders (F01-F99)
BlockMental disorders due to known physiological conditions

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.