Q93.52 – Phelan-McDermid syndrome

ICD-10-CM 2027 diagnosis code · Chromosomal abnormalities, not elsewhere classified

Billable code

ICD-10-CM code Q93.52

Code: Q93.52 (claims format: Q9352)
Description: Phelan-McDermid 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 for Q93.52

Applicable to:

22q13.3 deletion syndrome

Use additional code:

code(s) to identify any associated conditions, such as:
autism spectrum disorder (F84.0)
degree of intellectual disabilities (F70-F79)
epilepsy and recurrent seizures (G40.-)
lymphedema (I89.0)

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 Q93.52

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Q93.5

Q93.51 – Angelman syndromeBillable
Q93.59 – Other deletions of part of a chromosomeBillable

Frequently asked questions

What is ICD-10 code Q93.52?

Q93.52 is the ICD-10-CM code for phelan-McDermid syndrome, in the block Q90-Q99 (Chromosomal abnormalities, not elsewhere classified).

Is Q93.52 a billable code?

Yes. Q93.52 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Q93.52 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.