Q93.51 – Angelman syndrome
ICD-10-CM 2027 diagnosis code · Chromosomal abnormalities, not elsewhere classified
ICD-10-CM code
Q93.51
- Code
Q93.51(claims format:Q9351)- Description
- Angelman syndrome
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
- Block
- Q90-Q99 Chromosomal abnormalities, not elsewhere classified
- Parent codes
- Q93 › Q93.5
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block Q90-Q99
Excludes2 (not included here):
- mitochondrial metabolic disorders (E88.4-)
Index terms for Q93.51
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Q93.5
Frequently asked questions
What is ICD-10 code Q93.51?
Q93.51 is the ICD-10-CM code for angelman syndrome, in the block Q90-Q99 (Chromosomal abnormalities, not elsewhere classified).
Is Q93.51 a billable code?
Yes. Q93.51 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Q93.51 belong to?
It belongs to category Q93 – Monosomies and deletions from the autosomes, not elsewhere classified.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.