M13.859
ICD-10-CMThis code signifies a form of arthritis affecting the hip joint that does not fit into more specific categories of inflammatory, degenerative, or infectious arthritis. It indicates the presence of joint inflammation and pain in the hip due to an identified, but less common, arthritic condition. The specific type of arthritis is known, but the laterality of the hip is not documented.
Use this code when documentation specifies a type of arthritis (e.g., psoriatic arthritis, enteropathic arthritis, or other systemic arthropathies) affecting the hip, but the specific hip (left or right) is not indicated. This code is appropriate when the physician has diagnosed a form of arthritis other than osteoarthritis, rheumatoid arthritis, or traumatic arthritis, and the hip is the affected joint.
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