ICD-10-CM
ICD-10 code for Angulation sacrum (acquired): M43.8
The ICD-10-CM index points "Angulation sacrum (acquired)" to M43.8, Other specified deforming dorsopathies. M43.8 is a header, not a billable code. Pick a code under it.
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.