Medical Coding Spine

Spine coding pairs an ICD-10-CM diagnosis, such as M48.062 lumbar spinal stenosis with neurogenic claudication or M51.16 lumbar disc disorder with radiculopathy, with CPT codes that describe the approach, the spinal region, and the number of levels treated. Fusion, instrumentation, interbody devices, and bone graft are usually reported separately, so a single spine surgery often needs several CPT codes.

Common Spine Diagnosis Codes (ICD-10-CM)

Lumbar and lumbosacral disc degeneration codes (M51.36 and M51.37) require a 6th character that tells whether discogenic back pain, lower extremity pain, or both are present, for example M51.360, with discogenic back pain only. Always code to the highest specificity, and do not report a symptom code such as M54.50 when a definitive diagnosis that includes the pain is documented.

Common Spine CPT Codes

Decompression

• 63030: laminotomy with decompression of nerve roots, one lumbar interspace
• 63047 and +63048: laminectomy with facetectomy and foraminotomy, lumbar, first segment and each additional segment
• 63081: anterior cervical corpectomy with decompression (corpectomy means removing at least half of a cervical vertebral body or one third of a thoracic or lumbar body)

Fusion (arthrodesis)

• 22551 and +22552: anterior cervical interbody fusion below C2, including discectomy, first interspace and each additional interspace. See our ACDF coding guide.
• 22600, 22610, 22612 and +22614: posterior or posterolateral fusion, single interspace in the cervical, thoracic, or lumbar region, and each additional interspace
• 22630: posterior interbody fusion technique, single lumbar interspace
• 22633: combined posterior or posterolateral and posterior interbody fusion, single lumbar interspace

Instrumentation, devices, and grafts (add-on codes)

• +22840: posterior nonsegmental instrumentation
• +22842, +22843, +22844: posterior segmental instrumentation, by the number of vertebral segments spanned
• +22845, +22846, +22847: anterior instrumentation, by the number of vertebral segments spanned
• +22853, +22854: insertion of an interbody biomechanical device, such as a cage
• +20930, +20931, +20936: morselized allograft, structural allograft, and local autograft. Medicare bundles 20930 and 20936, so check payer policy.

Other common spine procedures

• 22510, 22511: percutaneous vertebroplasty, cervicothoracic and lumbosacral
• 22513: percutaneous vertebral augmentation (kyphoplasty), thoracic
• 62270: diagnostic lumbar puncture
• 62263: percutaneous lysis of epidural adhesions, multiple sessions

For injections, see our guides to spinal facet joint interventions and trigger point injections.

Spine Coding Rules That Trip Coders Up

• Count interspaces and segments correctly. Fusion and decompression codes count interspaces or segments, while instrumentation codes count the vertebral segments the hardware spans.
• Add-on codes are never reported alone and are exempt from multiple procedure reductions, so modifier 51 is not appended to them.
• Co-surgeons. When an access surgeon and a spine surgeon each perform distinct parts of one code, both append modifier 62.
• NCCI edits. Check bundling edits before using modifier 59 or the X modifiers, and only use them when the documentation supports a separate site or session.
• Modifier 22 is for substantially greater work than usual, such as revision surgery through dense scar, and requires documentation of the extra time and difficulty.
• Inpatient facility coding. In ICD-10-PCS, the body part value is based on the spinal level and whether one or multiple vertebral joints were fused, and a separate procedure is coded for each vertebral joint that uses a different device or qualifier, such as anterior column versus posterior column (guidelines B3.10a and B3.10b).

Postoperative Care and the Global Period

Most major spine surgeries carry a 90 day global period. Routine postoperative visits during that period are included in the surgical payment and are reported with 99024, a no charge code, rather than an office visit code. Unrelated problems or complications that need a return to the operating room are reported separately with the appropriate modifier. See postoperative coding and the global period.

Documentation Checklist

• Diagnosis with region, laterality, and any myelopathy, radiculopathy, or neurogenic claudication
• Approach (anterior, posterior, lateral) and technique
• Exact levels and interspaces treated
• Hardware placed and the segments it spans
• Interbody devices and bone graft type
• Medical necessity, including conservative treatment tried, which many payers require before fusion

Medicare contractors publish documentation requirements for fusion, such as the Spinal Fusion Services billing and coding article. Check payer prior authorization rules before surgery.

Spine Coding FAQs

Is instrumentation billed separately from spinal fusion?

Yes. Instrumentation codes 22840 through 22847 are add-on codes reported in addition to the fusion code.

What is the CPT code for an ACDF?

22551 for the first interspace and +22552 for each additional interspace. These codes include the discectomy. Interbody devices and anterior plating are reported separately.

What is the difference between 63030 and 63047?

63030 is a laminotomy (partial removal) to decompress nerve roots at one lumbar interspace. 63047 is a laminectomy with facetectomy and foraminotomy at one lumbar segment.

What ICD-10 code is used for lumbar stenosis with neurogenic claudication?

M48.062, Spinal stenosis, lumbar region with neurogenic claudication.

How are postoperative visits after spine surgery coded?

Routine visits within the global period are reported with 99024 and are not paid separately.

Do I add modifier 51 to spine add-on codes?

No. Add-on codes are exempt from modifier 51.

Ready to become a certified medical coder? Our online CPC certification training prepares you for the AAPC CPC exam with a credentialed instructor. Many students train at little or no cost through medical coding scholarships and WIOA grants available in 30+ states.