Q02
Microcephaly
Risk-adjusting (HCC)Billable code
HCC risk adjustment mapping
CMS-HCC V28
HCC182
Spinal Cord Disorders/Injuries
CMS-HCC ESRD V24
HCC72
Spinal Cord Disorders/Injuries
RxHCC V08
RXHCC155
Spinal Cord Disorders
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
This code · Q02
Includes
hydromicrocephaly micrencephalon
Excludes 1
Meckel-Gruber syndrome (Q61.9)
Code first
, if applicable, congenital Zika virus disease
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 Q02
FY 2026 ›Sections that reference Q02
Sections whose FY 2026 text names Q02, its Q02 category, or a range containing it — the chapter guidance above is the authoritative source.
Find Q02 in the alphabetic index
19 index paths lead to this code
- Hydromicrocephaly
- Micrencephalon, micrencephaly
- Microcephalus, microcephalic, microcephaly
- Microencephalon
- Oligoencephalon
- Hypoplasia, hypoplastic › brain
- Hypoplasia, hypoplastic › cephalic
- Idiot, idiocy › microcephalic
- Nondevelopment › brain
- Undeveloped, undevelopment › brain
- Undeveloped, undevelopment › cerebral
- Absence › skull bone › with › microcephaly
- Agenesis › skull › with › microcephaly
- Anomaly, anomalous › skull › with › microcephaly
- Distortion › skull bone NEC › with › microcephaly
- Hypoplasia, hypoplastic › skull › with › microcephaly
- Anomaly, anomalous › bone › skull › with › microcephaly
- Deformity › skull › congenital › with › microcephaly
- Imperfect › closure › skull › with › microcephaly