Q00-Q07

Non-Billable
ChapterQ00–Q99
Rankblock
Official Description

Congenital malformations of the nervous system (Q00-Q07)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).

CH17 Parent Instructions

Excludes2(Not included here)
  • inborn errors of metabolism (E70-E88)

Clinical Hierarchy

CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q00-Q07Congenital malformations of the nervous system (Q00-Q07)
Q00Anencephaly and similar malformations
Q01Encephalocele
Q02Microcephaly
Q03Congenital hydrocephalus
Q04Other congenital malformations of brain
Q05Spina bifida
Q06Other congenital malformations of spinal cord
Q07Other congenital malformations of nervous system

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q00-Q07:

chapterCH17
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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