Q93.52

Phelan-McDermid syndrome

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

RxHCC V08

RXHCC148

Mild or Unspecified Intellectual Disability/Developmental Disorder

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · Q93.52

Use additional

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)

Synonyms

22q13.3 deletion syndrome

Inherited from Q90-Q99Chromosomal abnormalities, not elsewhere classified

Excludes 2

mitochondrial metabolic disorders (E88.4-)

Inherited from chapter 17Congenital malformations, deformations and chromosomal abnormalities

Excludes 2

inborn errors of metabolism (E70-E88)

Note

Codes from this chapter are not for use on maternal records

Official Guidelines for Q93.52

FY 2026 ›

I.C.17Chapter-specific guidanceChapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Sections that reference Q93.52

IV.QEncounters for routine health screeningsOutpatient services
… Congenital conditions and anomalies Assign “Y” for congenital conditions and anomalies except for categories Q00- Q99, Congenital anomalies, which are on the exempt list. …

Sections whose FY 2026 text names Q93.52, its Q93 category, or a range containing it — the chapter guidance above is the authoritative source.

Find Q93.52 in the alphabetic index

3 index paths lead to this code