M47.21
ICD-10-CMOther spondylosis with radiculopathy, occipito-atlanto-axial region
This diagnosis code signifies degenerative changes in the occipital, atlas (C1), and axis (C2) vertebrae, accompanied by nerve root compression. Patients typically present with pain, numbness, tingling, or weakness radiating into the head, neck, or upper extremities due to nerve impingement in this specific cervical region.
Apply this code when documentation clearly states spondylosis affecting the occipito-atlanto-axial joint complex and explicitly mentions associated radiculopathy. This is appropriate for conditions like cervical osteoarthritis at C0-C2 with neurological symptoms attributable to nerve root involvement.
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