M48.07 identifies spinal stenosis localized to the lumbosacral region — the junction where the lumbar spine meets the sacrum — involving narrowing of the spinal canal at that transitional segment.

Documentation tips

What should appear in the chart to support M48.07.

Source · Editorial brief grounded in 6 cited references ↓

• Specify 'lumbosacral region' or 'L5-S1' explicitly — a note that says only 'lumbar stenosis' maps to M48.06x, not M48.07.
• Record whether neurogenic claudication is present; while M48.07 itself has no claudication sub-code, payers and surgical reviewers expect this detail for medical necessity.
• Document imaging findings by level: note canal diameter, degree of stenosis, and specific vertebral levels involved (e.g., L5-S1 foraminal narrowing on MRI).
• If conservative treatment preceded surgery, document the duration, modalities tried (PT, ESIs, oral medications), and failure to respond — critical for pre-auth and audit defense.
• Distinguish lumbosacral from sacral stenosis: M48.08 covers the sacral and sacrococcygeal region; anatomical precision in the note prevents a downstream code mismatch.

Related CPT procedures

Procedure codes commonly billed with M48.07. 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 M48.07 and adjacent codes.

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

• Defaulting to M48.06x when documentation says 'lumbar-sacral' — if the sacrum is involved at the junction, M48.07 is correct; M48.06x is for stenosis limited to the lumbar region above that junction.
• Omitting the neurogenic claudication distinction when also coding adjacent lumbar stenosis (M48.06): M48.06 requires a 6th character (1 = without, 2 = with claudication), while M48.07 does not — mixing up the code structures is a common audit flag.
• Using M48.07 for foraminal stenosis only — ICD-10-CM M48.07 describes central canal narrowing at the lumbosacral region; foraminal stenosis may warrant additional or alternative coding depending on payer policy.
• Failing to add G99.2 when myelopathy is documented alongside stenosis — omitting this secondary code understates severity and can affect DRG assignment in inpatient settings.

Clinical context

Source · Editorial summary grounded in 6 cited references ↓

Sibling codes

Other billable codes under M48.0 (laterality / anatomic variants).