Billable FY2026 ICD-10-CM diagnosis code, spine region. What it covers, how to bill it cleanly, and what these patients sound like when they call.
Low back pain, unspecified: since the FY2022 expansion of M54.5, the unspecified member of a family that includes M54.51 (vertebrogenic) and M54.59 (other). It remains among the most-billed codes in all of medicine, and the most scrutinized when it persists across a long episode of care.
| Code | Description |
|---|---|
| M54.51 | Vertebrogenic low back pain |
| M54.59 | Other low back pain |
| M54.00 | Panniculitis affecting regions of neck and back, site unspecified |
| M54.01 | Panniculitis affecting regions of neck and back, occipito-atlanto-axial region |
| M54.02 | Panniculitis affecting regions of neck and back, cervical region |
| M54.03 | Panniculitis affecting regions of neck and back, cervicothoracic region |
The single most common spine-practice call. The phone job is separating routine low back pain from red flags: bowel or bladder changes, saddle numbness, progressive weakness, fever. Everything about the visit type, urgency, and provider depends on that screen, which is exactly what our after-hours triage protocol template structures.
ClinicFlow's voice AI runs this intake on every call for spine practices: capturing the story, applying your routing rules, and booking the right visit type with the right surgeon. See voice AI for spine practices or the Call Library for how each call type is handled.
M54.50 is the FY2026 ICD-10-CM code for low back pain, unspecified. Low back pain, unspecified: since the FY2022 expansion of M54.
If radicular features dominate, M54.16 (lumbar radiculopathy) or the sciatica codes describe the presentation better than M54.50, and the distinction matters for imaging and referral pathways.
Yes. M54.50 appears in the official FY2026 ICD-10-CM code set (effective October 1, 2025). ICD-10-CM is public-domain CMS data; verify annually as codes are revised each fiscal year.
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