ICD-10 Code for Neurosis

The ICD-10-CM code for neurosis is F48.9 — Nonpsychotic mental disorder, unspecified. This is the code the Alphabetic Index gives for neurosis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

F48.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which neurosis code should you use?

The Alphabetic Index lists 21 codes under Neurosis, neurotic. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

anankastic	F42.8	Other obsessive-compulsive disorder
anxiety	F41.1	Generalized anxiety disorder
asthenic	F48.8	Other specified nonpsychotic mental disorders
bladder	F45.8	Other somatoform disorders
cardiac	F45.8	Other somatoform disorders
cardiovascular	F45.8	Other somatoform disorders
character	F60.9	Personality disorder, unspecified
colon	F45.8	Other somatoform disorders
compensation	F68.10	Factitious disorder imposed on self, unspecified
compulsive, compulsion	F42.8	Other obsessive-compulsive disorder
conversion	F44.9	Dissociative and conversion disorder, unspecified
craft	F48.8	Other specified nonpsychotic mental disorders
cutaneous	F45.8	Other somatoform disorders
depersonalization	F48.1	Depersonalization-derealization syndrome
depressive	F34.1	Dysthymic disorder
environmental	F48.8	Other specified nonpsychotic mental disorders
excoriation	L98.1	Factitial dermatitis
fatigue	F48.8	Other specified nonpsychotic mental disorders
gastric	F45.8	Other somatoform disorders
gastrointestinal	F45.8	Other somatoform disorders
heart	F45.8	Other somatoform disorders
hypochondriacal	F45.21	Hypochondriasis
hysterical	F44.9	Dissociative and conversion disorder, unspecified
incoordination	F45.8	Other somatoform disorders
intestine	F45.8	Other somatoform disorders
larynx	F45.8	Other somatoform disorders
mixed NEC	F48.8	Other specified nonpsychotic mental disorders
musculoskeletal	F45.8	Other somatoform disorders
obsessional	F42.8	Other obsessive-compulsive disorder
obsessive-compulsive	F42.8	Other obsessive-compulsive disorder
occupational	F48.8	Other specified nonpsychotic mental disorders
ocular NEC	F45.8	Other somatoform disorders
pharynx	F45.8	Other somatoform disorders
phobic	F40.9	Phobic anxiety disorder, unspecified
posttraumatic	F43.10	Post-traumatic stress disorder, unspecified
psychasthenic	F48.8	Other specified nonpsychotic mental disorders
railroad	F48.8	Other specified nonpsychotic mental disorders
rectum	F45.8	Other somatoform disorders
respiratory	F45.8	Other somatoform disorders
rumination	F45.8	Other somatoform disorders
sexual	F65.9	Paraphilia, unspecified
situational	F48.8	Other specified nonpsychotic mental disorders
social	F40.10	Social phobia, unspecified
specified type NEC	F48.8	Other specified nonpsychotic mental disorders
state	F48.9	Nonpsychotic mental disorder, unspecified
stomach	F45.8	Other somatoform disorders
traumatic	F43.10	Post-traumatic stress disorder, unspecified
vasomotor	F45.8	Other somatoform disorders
visceral	F45.8	Other somatoform disorders
war	F48.8	Other specified nonpsychotic mental disorders

Neurosis anxiety

panic type

F41.0

Panic disorder [episodic paroxysmal anxiety]

Neurosis incoordination

larynx	F45.8	Other somatoform disorders
vocal cord	F45.8	Other somatoform disorders

Neurosis larynx

hysterical

F44.4

Conversion disorder with motor symptom or deficit

Neurosis posttraumatic

acute	F43.11	Post-traumatic stress disorder, acute
chronic	F43.12	Post-traumatic stress disorder, chronic

Neurosis social

generalized

F40.11

Social phobia, generalized

Neurosis state

with depersonalization episode

F48.1

Depersonalization-derealization syndrome

Neurosis traumatic

acute	F43.11	Post-traumatic stress disorder, acute
chronic	F43.12	Post-traumatic stress disorder, chronic

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources