F06.31 is the authoritative medical code for Mood disorder due to known physiological condition with depressive features. This classification is used in medical billing and clinical recording to specify the clinical criteria for mood disorder due to known physiological condition with depressive features (ICD-10-CM F06.31), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Mood disorder due to known physiological condition with depressive features is a billable ICD-10-CM diagnosis code F06.31. Includes: mental disorders due to endocrine disorder; mental disorders due to exogenous hormone; mental disorders due to exogenous toxic substance; mental disorders due to primary cerebral disease; mental disorders due to somatic illness; mental disorders due to systemic disease affecting the brain. Inclusion terms: Depressive disorder due to known physiological condition, with depressive features. Excludes1 (not coded here): unspecified dementia F03.-. Excludes2 (not included here): 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; delirium due to known physiological condition F05; dementia as classified in F01-F02; other mental disorders associated with alcohol and other psychoactive substances F10-F19. Code first: the underlying physiological condition.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for F06.31 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- mental disorders due to endocrine disorder
- mental disorders due to exogenous hormone
- mental disorders due to exogenous toxic substance
- mental disorders due to primary cerebral disease
- mental disorders due to somatic illness
- mental disorders due to systemic disease affecting the brain
Inclusion Terms
Alternative terms the tabular list files under this code.
- Depressive disorder due to known physiological condition, with depressive features
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- unspecified dementia F03.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- 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
- delirium due to known physiological condition F05
- dementia as classified in F01-F02
- other mental disorders associated with alcohol and other psychoactive substances F10-F19
Code First
Underlying conditions that must be sequenced before this code.
- the underlying physiological condition
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with F06.31?
Per Excludes1 instructions, F06.31 must not be reported with: unspecified dementia (F03.-).
Can F06.31 be reported alongside related conditions?
Per Excludes2 instructions, F06.31 and the following may both be reported when both are present: 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); delirium due to known physiological condition (F05); dementia as classified in F01-F02.
Does F06.31 need to be sequenced after another code?
Yes. Code first: the underlying physiological condition.
What conditions are included under F06.31?
Mood disorder due to known physiological condition with depressive features includes: Depressive disorder due to known physiological condition, with depressive features.
Codes in This Family (14)
Official ICD-10-CM classifications in the same code family as F06.31, with their registry titles.
- F06 — Other mental disorders due to known physiological condition
- F06.0 — Psychotic disorder with hallucinations due to known physiological condition
- F06.1 — Catatonic disorder due to known physiological condition
- F06.2 — Psychotic disorder with delusions due to known physiological condition
- F06.3 — Mood disorder due to known physiological condition
- F06.30 — Mood disorder due to known physiological condition, unspecified
- F06.32 — Mood disorder due to known physiological condition with major depressive-like episode
- F06.33 — Mood disorder due to known physiological condition with manic features
- F06.34 — Mood disorder due to known physiological condition with mixed features
- F06.4 — Anxiety disorder due to known physiological condition
- F06.7 — Mild neurocognitive disorder due to known physiological condition
- F06.70 — Mild neurocognitive disorder due to known physiological condition without behavioral disturbance
- F06.71 — Mild neurocognitive disorder due to known physiological condition with behavioral disturbance
- F06.8 — Other specified mental disorders due to known physiological condition
Indexed Clinical Terms (7)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Disorder (of), depressive, due to known physiological condition, with, depressive features
- Disorder (of), depressive, organic
- Disorder (of), mood, due to (secondary to), physiological condition, with, depressive features
- State (of), psychotic, organic, transient NEC, with, depression
- State (of), transient organic psychotic NEC, depressive type
- Syndrome, organic, depressive
- Syndrome, psycho-organic (nonpsychotic severity), depressive type
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: