Q04.3
BillableOther reduction deformities of brain
HCC Category Mapping
V28HCC 182 — Spinal Cord Disorders/Injuries
0.282V24HCC 72 — Spinal Cord Disorders/Injuries
0.464ESRDHCC 72 — Spinal Cord Disorders/Injuries
0.000RxHCCHCC 155 — Myelitis and Encephalomyelitis
0.000What This Code Means
A birth defect involving various types of brain underdevelopment or reduction in brain tissue that do not fit into other specific categories.
Coding Tips
- •Use this code for brain reduction deformities not classified elsewhere
- •Document the specific type of reduction deformity when available
Clinical Significance
Other reduction deformities of the brain encompass various forms of underdevelopment or decreased brain tissue not classified elsewhere. These conditions require individualized assessment and management based on the specific areas affected and functional impact.
Documentation Requirements
- ✓Documentation of brain underdevelopment or reduction not fitting other categories
- ✓Neuroimaging findings showing decreased brain tissue or structures
- ✓Specific anatomical areas affected if identified
- ✓Neurological examination and functional assessment
- ✓Developmental evaluation and cognitive testing as appropriate
- ✓Associated complications or comorbidities
- ✓Exclusion of other specific brain malformation categories
- ✓Treatment and intervention planning
Excludes 1 — Do NOT code together
- congenital malformations of corpus callosum (Q04.0)
Commonly Confused Codes
Q04.0-Q04.2 — Specific brain malformations when particular structures are identifiedQ04.8 — Other specified brain malformations may not involve reductionP91.2 — Neonatal cerebral leukomalacia is acquired brain injuryG93.1 — Anoxic brain damage is acquired, not congenital malformationF79 — Intellectual disability may result from but is not the structural abnormality
Code Hierarchy
└Q04Other congenital malformations of brain└Q04.3Other reduction deformities of brain
└Q04.3Other reduction deformities of brain