Skip to main content
Compare/M17 vs M47

M17 vs M47

M17 (Osteoarthritis of knee) compared with M47 (Spondylosis), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. M17 carries an Excludes2 note covering M47: “osteoarthritis of spine (M47.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

M17Osteoarthritis of kneeM47Spondylosis
Billing statusNon-billable header

Report instead: M17.0, M17.10, M17.11, M17.12, M17.2

Non-billable header

Report instead: M47.011, M47.012, M47.013, M47.014, M47.015

ClassificationM00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)
DefinitionOsteoarthritis of knee is a non-billable ICD-10-CM category code (M17).Spondylosis is a non-billable ICD-10-CM category code (M47).
Includes—
arthrosis or osteoarthritis of spine
degeneration of facet joints
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources