F45 Somatoform disorders

Not billable (header)Chapter 5

Report one of the more specific codes below.

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Codes under this one

F45.0 Somatization disorder
F45.1 Undifferentiated somatoform disorder
F45.2 Hypochondriacal disordersHeader
F45.4 Pain disorders related to psychological factorsHeader
F45.8 Other somatoform disorders
F45.9 Somatoform disorder, unspecified

Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

This code

Excludes2Not included here: the patient may have both; report both when both are present.

dissociative and conversion disorders (F44.-)
factitious disorders (F68.1-, F68.A)
hair-plucking (F63.3)
lalling (F80.0)
lisping (F80.0)
malingering [conscious simulation] (Z76.5)
nail-biting (F98.8)
psychological or behavioral factors associated with disorders or diseases classified elsewhere (F54)
sexual dysfunction, not due to a substance or known physiological condition (F52.-)
thumb-sucking (F98.8)
tic disorders (in childhood and adolescence) (F95.-)
Tourette's syndrome (F95.2)
trichotillomania (F63.3)

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F40-F48 Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders (F40-F48)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.