M15.9

ICD-10Billable

Polyosteoarthritis, unspecified

Official ICD-10-CM descriptor (FY2026)

Polyosteoarthritis, unspecified

M15.9 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Generalized osteoarthritis NOS

Related codes in M15

M15.0Primary generalized (osteo)arthritis
M15.1Heberden's nodes (with arthropathy)
M15.2Bouchard's nodes (with arthropathy)
M15.3Secondary multiple arthritis
M15.4Erosive (osteo)arthritis
M15.8Other polyosteoarthritis

Where this code sits

Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: Osteoarthritis (M15-M19)
Parent code: M15

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.