ICD-10-CM 2027
ICD-10 code for hypochondriacal disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › hypochondriacal”. Page updated September 29, 2026.
About coding hypochondriacal disorder
The ICD-10-CM code for hypochondriacal disorder is F45.20 (Hypochondriacal disorder, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F45.20.
Within F45.2, choose F45.20 (Hypochondriacal disorder, unspecified) only when documentation doesn't support a more specific option: Hypochondriasis (F45.21), body dysmorphic disorder (F45.22) and other hypochondriacal disorders (F45.29).
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.
More specific hypochondriacal disorder codes (official index)
Common questions about hypochondriacal disorder ICD-10 codes
What is the ICD-10 code for hypochondriacal disorder?
- F45.20 — Hypochondriacal disorder, unspecified. More specific codes apply when the documentation supports them: F45.22, F45.21, F45.29.
What is the ICD-10 code for body dysmorphic hypochondriacal disorder?
- F45.22 — Body dysmorphic disorder.
What is the ICD-10 code for neurosis hypochondriacal disorder?
- F45.21 — Hypochondriasis.
What is the ICD-10 code for other specified hypochondriacal disorder?
- F45.29 — Other hypochondriacal disorders.
Is F45.20 billable?
- Yes. F45.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F45.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F45.20 as a principal diagnosis.
Is F45.20 a CC or MCC?
- No. F45.20 is neither a CC nor an MCC under MS-DRG v44.0.