Q87.11

Prader-Willi 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

Inherited from Q87.1Congenital malform syndromes predom assoc w short stature
Excludes 1

Ellis-van Creveld syndrome (Q77.6) Smith-Lemli-Opitz syndrome (E78.72)

Inherited from Q87Oth congenital malform syndromes affecting multiple systems
Use additional

code(s) to identify all associated manifestations

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 Q87.11

FY 2026 ›
I.C.17Chapter-specific guidanceChapter 17: Congenital malformations, deformations, and chromosomal abnormalities (Q00-QA1)

Sections that reference Q87.11

Sections whose FY 2026 text names Q87.11, its Q87 category, or a range containing it — the chapter guidance above is the authoritative source.

Find Q87.11 in the alphabetic index

2 index paths lead to this code