ICD-10-CM 2027
ICD-10 code for Happy puppet syndrome
From the official ICD-10-CM alphabetic index entry “Happy puppet syndrome”. Page updated September 29, 2026.
About coding Happy puppet syndrome
The ICD-10-CM code for Happy puppet syndrome is Q93.51 (Angelman syndrome).
Within Q93.5 (other deletions of part of a chromosome), Q93.51 is specifically for Angelman syndrome. Related codes cover Phelan-McDermid syndrome (Q93.52) and other deletions of part of a chromosome (Q93.59).
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.
Common questions about Happy puppet syndrome ICD-10 codes
What is the ICD-10 code for Happy puppet syndrome?
- Q93.51 — Angelman syndrome.
Is Q93.51 billable?
- Yes. Q93.51 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q93.51 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q93.51 as a principal diagnosis.
Is Q93.51 a CC or MCC?
- Q93.51 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.