ICD-10-CM

ICD-10 code for Lumbago: M54.50

The ICD-10-CM index points "Lumbago" to M54.5 (Low back pain), a header that is not billable. When nothing more specific is documented, the billable code is M54.50, Low back pain, unspecified.

Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page

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A header groups codes and is not billed. A billable code is one you can report.

More specific codes in M54

A header groups codes and is not billed. A billable code is one you can report.

Excludes1

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Questions

What is the ICD-10 code for Lumbago?

The ICD-10-CM index points "Lumbago" to M54.5 (Low back pain), a header that is not billable. When nothing more specific is documented, the billable code is M54.50, Low back pain, unspecified.

Is M54.50 billable?

Yes. M54.50 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.

What documentation notes apply to M54.50?

The CDC tabular list gives 6 Excludes1 notes (not coded together) for M54.50 and the categories above it. They are listed on this page.

What chapter is M54.50 in?

Chapter 13. Diseases of the musculoskeletal system.

When do ICD-10-CM codes change?

Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.

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