Q93.51Billable
Angelman syndrome
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q93
- Effective date
- October 1, 2026
Related codes in category Q93
Q93Monosomies and deletions from the autosomes, NECQ93.0Whole chromosome monosomy,nonmosaic (meiotic nondisjunction)YesQ93.1Whole chromosome monosomy, mosaic (mitotic nondisjunction)YesQ93.2Chromosome replaced with ring, dicentric or isochromosomeYesQ93.3Deletion of short arm of chromosome 4YesQ93.4Deletion of short arm of chromosome 5YesQ93.5Other deletions of part of a chromosomeQ93.52Phelan-McDermid syndromeYesQ93.59Other deletions of part of a chromosomeYesQ93.7Deletions with other complex rearrangementsYesQ93.8Other deletions from the autosomesQ93.81Velo-cardio-facial syndromeYes
Frequently asked questions
What is ICD-10 code Q93.51?
Q93.51 is an ICD-10-CM diagnosis code for Angelman syndrome.
Is Q93.51 a billable code?
Yes. Q93.51 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Q93.51 in?
Q93.51 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q93.51 become effective?
Q93.51 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q93.51?
Q93.51 belongs to category Q93, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.