M51.16 is the authoritative medical code for Intervertebral disc disorders with radiculopathy, lumbar region. This classification is used in medical billing and clinical recording to specify the clinical criteria for intervertebral disc disorders with radiculopathy, lumbar region (ICD-10-CM M51.16), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Intervertebral disc disorders with radiculopathy, lumbar region is a billable ICD-10-CM diagnosis code M51.16. Excludes1 (not coded here): lumbar radiculitis NOS M54.16; sciatica NOS M54.3; current injury - see injury of spine by body region; discitis NOS M46.4-. Excludes2 (not included here): cervical and cervicothoracic disc disorders M50.-; sacral and sacrococcygeal disorders M53.3.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M51.16 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- lumbar radiculitis NOS M54.16
- sciatica NOS M54.3
- current injury - see injury of spine by body region
- discitis NOS M46.4-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- cervical and cervicothoracic disc disorders M50.-
- sacral and sacrococcygeal disorders M53.3
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M51.16?
Per Excludes1 instructions, M51.16 must not be reported with: lumbar radiculitis NOS (M54.16); sciatica NOS (M54.3); current injury - see injury of spine by body region; discitis NOS (M46.4-).
Can M51.16 be reported alongside related conditions?
Per Excludes2 instructions, M51.16 and the following may both be reported when both are present: cervical and cervicothoracic disc disorders (M50.-); sacral and sacrococcygeal disorders (M53.3).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M51.16, with their registry titles.
- M51 — Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
- M51.0 — Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy
- M51.04 — Intervertebral disc disorders with myelopathy, thoracic region
- M51.05 — Intervertebral disc disorders with myelopathy, thoracolumbar region
- M51.06 — Intervertebral disc disorders with myelopathy, lumbar region
- M51.1 — Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy
- M51.14 — Intervertebral disc disorders with radiculopathy, thoracic region
- M51.15 — Intervertebral disc disorders with radiculopathy, thoracolumbar region
- M51.17 — Intervertebral disc disorders with radiculopathy, lumbosacral region
- M51.2 — Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement
- M51.24 — Other intervertebral disc displacement, thoracic region
- M51.25 — Other intervertebral disc displacement, thoracolumbar region
- M51.26 — Other intervertebral disc displacement, lumbar region
- M51.27 — Other intervertebral disc displacement, lumbosacral region
- M51.3 — Other thoracic, thoracolumbar and lumbosacral intervertebral disc degeneration
- M51.34 — Other intervertebral disc degeneration, thoracic region
- M51.35 — Other intervertebral disc degeneration, thoracolumbar region
- M51.36 — Other intervertebral disc degeneration, lumbar region
- M51.360 — Other intervertebral disc degeneration, lumbar region with discogenic back pain only
- M51.361 — Other intervertebral disc degeneration, lumbar region with lower extremity pain only
- M51.362 — Other intervertebral disc degeneration, lumbar region with discogenic back pain and lower extremity pain
- M51.369 — Other intervertebral disc degeneration, lumbar region without mention of lumbar back pain or lower extremity pain
- M51.37 — Other intervertebral disc degeneration, lumbosacral region
- M51.370 — Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only
- M51.371 — Other intervertebral disc degeneration, lumbosacral region with lower extremity pain only
- M51.372 — Other intervertebral disc degeneration, lumbosacral region with discogenic back pain and lower extremity pain
- M51.379 — Other intervertebral disc degeneration, lumbosacral region without mention of lumbar back pain or lower extremity pain
- M51.4 — Schmorl's nodes
- M51.44 — Schmorl's nodes, thoracic region
- M51.45 — Schmorl's nodes, thoracolumbar region
- M51.46 — Schmorl's nodes, lumbar region
- M51.47 — Schmorl's nodes, lumbosacral region
- M51.8 — Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders
- M51.84 — Other intervertebral disc disorders, thoracic region
- M51.85 — Other intervertebral disc disorders, thoracolumbar region
- M51.86 — Other intervertebral disc disorders, lumbar region
- M51.87 — Other intervertebral disc disorders, lumbosacral region
- M51.9 — Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder
- M51.A — Other lumbar and lumbosacral annulus fibrosus disc defects
- M51.A0 — Intervertebral annulus fibrosus defect, lumbar region, unspecified size
Indexed Clinical Terms (4)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Degeneration, degenerative, intervertebral disc, lumbar region, with, neuritis, radiculitis, radiculopathy or sciatica
- Disease, diseased, intervertebral disc, lumbar (with), neuritis, radiculitis, radiculopathy or sciatica
- Disorder (of), disc (intervertebral), with, radiculopathy, lumbar region
- Displacement, displaced, intervertebral disc NEC, lumbar region, with, neuritis, radiculitis, radiculopathy or sciatica
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: