Oth physeal fx lower end of humerus, unsp arm, sequela

This code signifies a long-term complication or late effect stemming from a physeal (growth plate) fracture of the lower humerus, where the specific arm affected is not documented. It indicates that the initial injury has healed, but the patient is now experiencing residual issues directly attributable to that past fracture.

Use this code when documenting conditions such as growth arrest, angular deformity, chronic pain, or limited range of motion in the elbow or arm, which are directly linked to a previously sustained physeal fracture of the distal humerus. This applies when the initial fracture has been treated and the current encounter addresses the ongoing sequelae, and the laterality of the original injury is unknown or unspecified.

• Always assign a sequela code (ending in "S") as a secondary diagnosis, following the code for the specific sequela (e.g., M21.02 for valgus deformity).
• Ensure documentation clearly links the current condition to a past physeal fracture of the distal humerus.
• Avoid using this code for acute or subacute fractures; it is strictly for late effects.