- Q04.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM Q04.3 became effective on October 1, 2022.
- This is the American ICD-10-CM version of Q04.3 – other international versions of ICD-10 Q04.3 may differ.
ICD-10-CM Q04.3 is grouped within Diagnostic Related Group(s):
- 091 Other disorders of nervous system with mcc
- 092 Other disorders of nervous system with cc
- 093 Other disorders of nervous system without cc/mcc
- 791 Prematurity with major problems
- 793 Full term neonate with major problems
Applicable To
- Absence of part of brain
- Agenesis of part of brain
- Agyria
- Aplasia of part of brain
- Hydranencephaly
- Hypoplasia of part of brain
- Lissencephaly
- Microgyria
- Pachygyria
Type 1 Excludes
- congenital malformations of corpus callosum (Q04.0)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to Q04.3:
- part of > brain Q00.0
- cerebellum (vermis) > Absence (of) (organ or part) (complete or partial)
- part of > brain Q00.0
- cerebellum > Agenesis
- vermis of cerebellum > Agenesis
- part of > brain Q00.0
- cerebellum > Aplasia
- reduction > brain (congenital) Q04.9
- brain > reduction, congenital (extremity) (limb) Q73.8
- gyri > brain Q02
- part of > brain Q02
- cerebellum > Hypoplasia, hypoplastic
- part of > brain Q02