ICD-10-CM Alphabetic Index · FY 2026 113 Entries

Osteoarthritis in the ICD-10-CM Index ICD-10-CM

The main term Osteoarthritis carries 113 index entries pointing to 54 ICD-10-CM codes. The default entry is M19.90, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.

✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
113
Index Entries
54
Codes Referenced
M19.90
Default Code
O
Letter
113 of 113 shown
ICD-10-CM

Index Entries Under Osteoarthritis 113 entries · 54 codes

Osteoarthritis M19.90
ankle M19.07- Non-billable
post-traumatic M19.17- Non-billable
primary M19.07- Non-billable
secondary M19.27- Non-billable
elbow M19.02- Non-billable
post-traumatic M19.12- Non-billable
primary M19.02- Non-billable
secondary M19.22- Non-billable
foot joint M19.07- Non-billable
post-traumatic M19.17- Non-billable
primary M19.07- Non-billable
secondary M19.27- Non-billable
generalized (multiple joints) M15.9
erosive M15.4
primary M15.0
specified NEC M15.8
hand joint M19.04- Non-billable
first carpometacarpal joint M18.9
post-traumatic see Osteoarthritis, post-traumatic NEC, hand joint, first carpometacarpal joint
primary see Osteoarthritis, primary, hand joint, first carpometacarpal joint
secondary see Osteoarthritis, secondary, hand joint, first carpometacarpal joint
post-traumatic M19.14- Non-billable
primary M19.04- Non-billable
secondary M19.24- Non-billable
hip M16.9
bilateral M16.0
due to hip dysplasia M16.2
post-traumatic M16.4
secondary M16.6
due to hip dysplasia (unilateral) M16.3- Non-billable
bilateral M16.2
post-traumatic see Osteoarthritis, post-traumatic, hip
primary M16.1- Non-billable
bilateral M16.0
secondary see Osteoarthritis, secondary, hip
unilateral M16.1- Non-billable
due to hip dysplasia M16.3- Non-billable
post-traumatic M16.5- Non-billable
primary M16.1- Non-billable
secondary NEC M16.7
interphalangeal
distal (Heberden) M15.1
proximal (Bouchard) M15.2
knee M17.9
bilateral M17.0
post-traumatic M17.2
secondary M17.4
post-traumatic see Osteoarthritis, post-traumatic, knee
primary M17.1- Non-billable
bilateral M17.0
secondary see Osteoarthritis, secondary, knee
unilateral M17.1- Non-billable
post-traumatic M17.3- Non-billable
primary M17.1- Non-billable
secondary NEC M17.5
post-traumatic NEC M19.92
ankle M19.17- Non-billable
elbow M19.12- Non-billable
foot joint M19.17- Non-billable
hand joint M19.14- Non-billable
first carpometacarpal joint M18.3- Non-billable
bilateral M18.2
hip M16.5- Non-billable
bilateral M16.4
knee M17.3- Non-billable
bilateral M17.2
shoulder M19.11- Non-billable
specified site NEC M19.19
wrist M19.13- Non-billable
primary M19.91
ankle M19.07- Non-billable
elbow M19.02- Non-billable
foot joint M19.07- Non-billable
hand joint M19.04- Non-billable
first carpometacarpal joint M18.1- Non-billable
bilateral M18.0
hip M16.1- Non-billable
bilateral M16.0
knee M17.1- Non-billable
bilateral M17.0
multiple sites M15.9
shoulder M19.01- Non-billable
specified site NEC M19.09
spine see Spondylosis
wrist M19.03- Non-billable
secondary M19.93
ankle M19.27- Non-billable
elbow M19.22- Non-billable
foot joint M19.27- Non-billable
hand joint M19.24- Non-billable
first carpometacarpal joint M18.5- Non-billable
bilateral M18.4
hip M16.7-
bilateral M16.6
knee M17.5-
bilateral M17.4
multiple M15.3
shoulder M19.21- Non-billable
specified site NEC M19.29
spine see Spondylosis
wrist M19.23- Non-billable
shoulder M19.01- Non-billable
post-traumatic M19.11- Non-billable
primary M19.01- Non-billable
secondary M19.21- Non-billable
specified site NEC M19.09
spine see Spondylosis
wrist M19.03- Non-billable
first carpometacarpal joint see Osteoarthritis, hand joint, first carpometacarpal joint
post-traumatic M19.13- Non-billable
primary M19.03- Non-billable
secondary M19.23- Non-billable

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Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.