M46.85
ICD-10-CMOther specified inflammatory spondylopathies, thoracolumbar region
This code signifies an inflammatory condition affecting the spine in the thoracic and lumbar regions that does not fit into more specific categories of spondylopathy. It indicates a non-infectious inflammatory process causing pain, stiffness, and potentially structural changes in the mid to lower back. This diagnosis excludes conditions like ankylosing spondylitis or psoriatic spondylitis, which have their own specific codes.
Apply this code when documentation clearly states an inflammatory spondylopathy affecting the thoracolumbar spine, but the specific type of inflammatory spondylopathy is not otherwise classified. This typically occurs when a definitive diagnosis for a more specific inflammatory spondylopathy (e.g., M45, M07.-) cannot be made, or the condition is described as "other specified." Supporting documentation should include physician notes detailing inflammatory markers, imaging findings, and exclusion of more common inflammatory spondylopathies.
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