Other congenital malformations of ribs

This code represents various congenital structural abnormalities of the ribs that are not classified elsewhere. These malformations can include absent ribs, fused ribs, bifid ribs, or other atypical rib formations present at birth. It encompasses a spectrum of anomalies affecting the shape, number, or integrity of the rib cage.

Use this code when documentation specifies a congenital rib malformation that is not explicitly defined by another, more specific ICD-10-CM code. This applies to conditions such as congenital rib aplasia, hypoplasia, or synostosis. Supporting documentation should include imaging reports (e.g., X-ray, CT scan) or physician notes detailing the specific rib anomaly.

• Do not use this code for acquired rib conditions, such as fractures or deformities resulting from trauma or disease.
• Carefully review documentation to ensure the rib malformation is congenital and not better described by a more specific code.
• Remember the Excludes1 note: never code this with short rib syndrome (Q77.2).