ICD-10-CM 2027
ICD-10 code for Idiot
From the official ICD-10-CM alphabetic index entry “Idiot, idiocy (congenital)”. Page updated September 29, 2026.
About coding Idiot
The ICD-10-CM code for Idiot is F73 (Profound intellectual disabilities). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F73.
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 884 (Organic Disturbances and Intellectual Disability, relative weight 1.6001), 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.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific Idiot codes (official index)
Common questions about Idiot ICD-10 codes
What is the ICD-10 code for Idiot?
- F73 — Profound intellectual disabilities. More specific codes apply when the documentation supports them: E75.4, Q02.
What is the ICD-10 code for amaurotic))) idiot?
- E75.4 — Neuronal ceroid lipofuscinosis.
What is the ICD-10 code for microcephalic idiot?
- Q02 — Microcephaly.
Is F73 billable?
- Yes. F73 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F73 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F73 as a principal diagnosis.
Is F73 a CC or MCC?
- F73 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.