ICD-10-CM 2027
ICD-10 code for Somatization disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › somatization”. Page updated September 29, 2026.
About coding Somatization disorder
The ICD-10-CM code for Somatization disorder is F45.0 (Somatization disorder).
Within F45 (somatoform disorders), F45.0 is specifically for Somatization disorder. Related codes cover Undifferentiated somatoform disorder (F45.1), hypochondriacal disorders (F45.2), pain disorders related to psychological factors (F45.4), other somatoform disorders (F45.8) and somatoform disorder, unspecified (F45.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 882 (Neuroses Except Depressive, relative weight 0.9952), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Somatization disorder ICD-10 codes
What is the ICD-10 code for Somatization disorder?
- F45.0 — Somatization disorder.
Is F45.0 billable?
- Yes. F45.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F45.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F45.0 as a principal diagnosis.
Is F45.0 a CC or MCC?
- No. F45.0 is neither a CC nor an MCC under MS-DRG v44.0.