ICD-10 Code G99.2 – Myelopathy in diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G99.2 – Myelopathy in diseases classified elsewhere
What it is
This code identifies spinal cord dysfunction caused by another underlying disease, rather than a primary spinal cord disorder. Use it when the myelopathy is documented as secondary to a separate condition.
Clinical signs
Findings may include weakness, spasticity, gait difficulty, sensory changes, or bowel and bladder dysfunction. Clinical features vary; refer to documentation and the underlying cause.
When to use this code
Use G99.2 when the provider documents myelopathy due to another disease, such as a systemic or neurologic condition classified elsewhere. Assign the underlying condition first when coding guidance requires it, and confirm the causal link in the record.
Do not use for
Do not use this code for primary myelopathy without an identified underlying disease. Do not use it when documentation only mentions back pain, radiculopathy, or nonspecific neurologic symptoms.
Coding tip
Verify the causal relationship and code the underlying disease in addition to G99.2 when supported by documentation.