Complete physeal arrest, left proximal humerus

This code signifies the premature and complete cessation of growth at the growth plate (physis) located in the upper part of the left humerus. This condition prevents further longitudinal bone growth in the affected arm, potentially leading to limb length discrepancy and functional impairment.

Assign this code when documentation confirms a complete physeal arrest affecting the proximal humerus on the patient's left side. This typically follows trauma, infection, or other growth plate disturbances, and is often diagnosed via imaging studies showing a closed physis before skeletal maturity.

• Ensure documentation specifies "complete" arrest; partial arrest codes are different.
• Verify laterality (left) and bone (humerus) and location (proximal) are clearly stated.
• Consider sequencing this code with an underlying cause, such as a fracture or infection, if applicable.