Oth specific joint derangements of left shoulder, NEC

This code signifies a specific, non-traumatic derangement of the left shoulder joint that doesn't fit into more specific categories like instability, internal derangement, or loose body. It encompasses various structural or functional abnormalities affecting the joint mechanics, excluding those primarily due to inflammation, infection, or systemic disease.

Apply this code when documentation indicates a distinct, non-traumatic derangement of the left shoulder, such as a capsular laxity not meeting instability criteria, an unspecified impingement syndrome, or other mechanical issues not otherwise classified. Supporting documentation should clearly specify the left shoulder and describe the derangement without providing a more precise diagnosis.

• Ensure the documentation explicitly states "left shoulder" and describes a derangement that is not better captured by more specific M24 codes (e.g., M24.2 for loose body, M24.3 for pathological dislocation).
• Avoid using this code if a more precise diagnosis, such as rotator cuff tear (M75.1-), adhesive capsulitis (M75.0-), or shoulder instability (M24.4-), is documented.
• Always review the entire M24 category to ensure the most specific code is selected, as this code is for "other specific" derangements "not elsewhere classified."