S23.421S
ICD-10-CMThis code signifies a long-term or late-effect condition resulting from a sprain of the chondrosternal joint, which is where the cartilage of the ribs meets the sternum. It indicates that the initial injury has resolved, but the patient continues to experience residual symptoms or complications directly attributable to that past sprain.
Use this code when documenting a patient presenting with chronic pain, stiffness, or other persistent issues in the chondrosternal joint that are directly linked to a previously sustained sprain. This applies after the acute phase of the original injury has passed, and the current encounter addresses these lasting effects.
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