Q04.0
BillableCongenital malformations of corpus callosum
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 where the corpus callosum, the main structure connecting the two sides of the brain, is malformed or underdeveloped.
Coding Tips
- •Specify whether the corpus callosum is absent, hypoplastic, or has other structural abnormalities
- •This may be associated with other brain malformations; code those separately if present
Clinical Significance
Congenital malformations of the corpus callosum can cause significant cognitive, motor, and behavioral impairments due to disrupted interhemispheric communication. These conditions require multidisciplinary care and long-term developmental support services.
Documentation Requirements
- ✓Documentation of corpus callosum malformation identified on neuroimaging
- ✓Specific description of malformation type (agenesis, dysgenesis, hypoplasia)
- ✓Neurological examination findings and developmental assessment
- ✓Associated neurological or developmental deficits
- ✓Neuroimaging studies confirming corpus callosum abnormality
- ✓Assessment of cognitive and motor function impacts
- ✓Documentation of associated brain abnormalities if present
- ✓Treatment and developmental intervention plans
Commonly Confused Codes
Q04.3 — Other brain reduction deformities don't specifically involve corpus callosumQ04.8 — Other specified brain malformations are different anatomical areasG93.89 — Other specified brain disorders are acquired, not congenitalF84.9 — Autism spectrum disorder may be associated but is behavioral diagnosisR62.50 — Delayed development may result from but is not the malformation itself
Code Hierarchy
└Q04Other congenital malformations of brain└Q04.0Congenital malformations of corpus callosum
└Q04.0Congenital malformations of corpus callosum