Degenerative spinal disease of the thoracic vertebrae (T1–T12) that produces nerve root compression or irritation, resulting in thoracic radiculopathy — often presenting as band-like chest wall or trunk pain radiating along the dermatomal path of the affected thoracic nerve root.

Documentation tips

What should appear in the chart to support M47.24.

Source · Editorial brief grounded in 5 cited references ↓

• Explicitly state 'thoracic radiculopathy secondary to spondylosis' or equivalent — don't leave the causal link implicit.
• Identify the affected thoracic level(s) (e.g., T6–T7) in the note and correlate to imaging findings such as foraminal stenosis or disc-osteophyte complex.
• Record the dermatomal distribution of pain or sensory symptoms (e.g., band-like pain wrapping around the chest wall at the T8 level).
• Document provocative and relieving factors, as well as any motor or reflex deficits that confirm nerve root involvement.
• Note prior conservative treatment (physical therapy, NSAIDs, steroid taper) to support medical necessity for interventional procedures billed alongside this code.
• If MRI or CT myelogram was performed, include the radiologist's conclusion in the clinical impression — reference the specific level showing nerve root compromise.

Related CPT procedures

Procedure codes commonly billed with M47.24. Linking the right diagnosis to the right procedure is what establishes medical necessity.

Source · CMS LCDs · AAOS specialty guidance · claims-pattern analysis

Common coding pitfalls

The recurring mistakes coders make with M47.24 and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

• Using M47.24 when only axial thoracic back pain is documented — without radiculopathy, the correct code is M47.814.
• Confusing radiculopathy with myelopathy: cord compression signs (spasticity, hyperreflexia, gait disturbance) point to M47.14, not M47.24.
• Dropping to M47.20 (site unspecified) when the thoracic region is clearly documented — always code to the highest level of specificity available.
• Billing M47.24 alongside a lumbar or cervical nerve block CPT code without verifying the procedure site matches the thoracic diagnosis — payers cross-check anatomical consistency.
• Failing to distinguish thoracic from thoracolumbar involvement: if the junction (T12–L1) is the primary site, consider M47.25 instead.

Clinical context

Source · Editorial summary grounded in 5 cited references ↓

Sibling codes

Other billable codes under M47.2 (laterality / anatomic variants).