ICD-10-CM 2027
ICD-10 code for somatic symptom disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › somatic symptom”. Page updated September 29, 2026.
About coding somatic symptom disorder
The ICD-10-CM code for somatic symptom disorder is F45.1 (Undifferentiated somatoform disorder).
Within F45 (somatoform disorders), F45.1 is specifically for Undifferentiated somatoform disorder. Related codes cover Somatization disorder (F45.0), 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 somatic symptom disorder ICD-10 codes
What is the ICD-10 code for somatic symptom disorder?
- F45.1 — Undifferentiated somatoform disorder.
Is F45.1 billable?
- Yes. F45.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F45.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F45.1 as a principal diagnosis.
Is F45.1 a CC or MCC?
- No. F45.1 is neither a CC nor an MCC under MS-DRG v44.0.