S59.012S
ICD-10-CMSalter-Harris Type I physeal fracture of lower end of ulna, left arm, sequela
This code indicates a Salter-Harris Type I fracture affecting the growth plate at the distal end of the ulna in the left arm, specifically describing a long-term complication or late effect of the initial injury. A Type I fracture involves a transverse separation of the physis without bone involvement, making it difficult to detect on X-ray. The "sequela" designation implies that the current encounter addresses a residual problem stemming from this past fracture.
Use this code when documenting a patient presenting with a chronic issue, such as growth disturbance, angular deformity, or pain, that is directly attributable to a previously sustained Salter-Harris Type I physeal fracture of the left distal ulna. This code is appropriate for follow-up visits addressing the long-term consequences, not the initial acute injury.
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