ICD-10-CM 2027
ICD-10 code for Micrencephalon
From the official ICD-10-CM alphabetic index entry “Micrencephalon, micrencephaly”. Page updated September 29, 2026.
About coding Micrencephalon
The ICD-10-CM code for Micrencephalon is Q02 (Microcephaly).
Don't report Q02 together with the conditions in its Excludes1 note: Meckel-Gruber syndrome (Q61.9).
Code first: , if applicable, congenital Zika virus disease.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for Q02)
- Meckel-Gruber syndrome (Q61.9)
Common questions about Micrencephalon ICD-10 codes
What is the ICD-10 code for Micrencephalon?
- Q02 — Microcephaly.
Is Q02 billable?
- Yes. Q02 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q02 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q02 as a principal diagnosis.
Is Q02 a CC or MCC?
- No. Q02 is neither a CC nor an MCC under MS-DRG v44.0.