Acquired clawhand, right hand

This diagnosis code signifies a non-congenital deformity of the right hand characterized by hyperextension of the metacarpophalangeal joints and flexion of the interphalangeal joints, giving the hand a claw-like appearance. This condition typically results from nerve damage (e.g., ulnar or median nerve palsy) or other acquired musculoskeletal issues affecting the hand's intrinsic muscles.

Use this code when documentation clearly indicates an acquired clawhand deformity specifically affecting the patient's right hand. Supporting documentation should detail the physical examination findings consistent with clawhand and specify the affected side. This code is appropriate for conditions that develop after birth, differentiating it from congenital deformities.

• Ensure the documentation explicitly states "right hand" to support laterality.
• Distinguish from congenital clawhand deformities, which are coded differently.
• Consider coding any underlying neurological condition (e.g., ulnar nerve palsy) as a primary or secondary diagnosis, as it is often the etiology.