ICD-10-CM 2027
ICD-10 code for HAFOUS
From the official ICD-10-CM alphabetic index entry “HAFOUS (Hao-Fountain syndrome)”. Page updated September 29, 2026.
About coding HAFOUS
The ICD-10-CM code for HAFOUS is Q87.87 (Hao-Fountain Syndrome).
Within Q87.8 (other specified congenital malformation syndromes, not elsewhere classified), Q87.87 is specifically for Hao-Fountain Syndrome. Related codes cover Alport syndrome (Q87.81), arterial tortuosity syndrome (Q87.82), Bardet-Biedl syndrome (Q87.83), Laurence-Moon syndrome (Q87.84), MED13L syndrome (Q87.85), Kleefstra syndrome (Q87.86), CTNNB1 syndrome (Q87.88) and other specified congenital malformation syndromes, not elsewhere classified (Q87.89).
Use an additional code, if applicable, for associated conditions such as: autism spectrum disorder (F84.0), developmental speech disorder (F80.-), epilepsy, by specific type (G40.-), intellectual disabilities (F70-F79), pervasive developmental disorders (F84.-) and 1 more.
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.
Common questions about HAFOUS ICD-10 codes
What is the ICD-10 code for HAFOUS?
- Q87.87 — Hao-Fountain Syndrome.
Is Q87.87 billable?
- Yes. Q87.87 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q87.87 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q87.87 as a principal diagnosis.
Is Q87.87 a CC or MCC?
- Q87.87 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.