ICD-10-CM Alphabetic Index · FY 2027 52 Entries
Synovitis in the ICD-10-CM Index ICD-10-CM
The main term Synovitis carries 52 index entries pointing to 36 ICD-10-CM codes. The default entry is M65.90, 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 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027
52
Index Entries
36
Codes Referenced
M65.90
Default Code
S
Letter
52 of 52 shown
ICD-10-CM
Index Entries Under Synovitis 52 entries · 36 codes
Synovitis M65.90
ankle and foot M65.97 Non-billable
arm, upper M65.92 Non-billable
crepitant
hand M70.04 Non-billable
wrist M70.03 Non-billable
forearm M65.93 Non-billable
gonococcal A54.49
gouty see Gout
hand M65.94 Non-billable
in (due to)
crystals M65.8 Non-billable
gonorrhea A54.49
syphilis (late) A52.78
use, overuse, pressure see Disorder, soft tissue, due to use
infective NEC see Tenosynovitis, infective NEC
leg, lower M65.96 Non-billable
multiple sites, unspecified type M65.99
shoulder M65.91 Non-billable
specified NEC see Tenosynovitis, specified type NEC
specified site, unspecified type M65.98
syphilitic A52.78
congenital (early) A50.02
thigh M65.95 Non-billable
toxic see Synovitis, transient
transient M67.3 Non-billable
ankle M67.37 Non-billable
elbow M67.32 Non-billable
foot joint M67.37 Non-billable
hand joint M67.34 Non-billable
hip M67.35 Non-billable
knee M67.36 Non-billable
multiple site M67.39
pelvic region M67.35 Non-billable
shoulder M67.31 Non-billable
specified joint NEC M67.38
wrist M67.33 Non-billable
traumatic, current see Sprain
tuberculous see Tuberculosis, synovitis
villonodular (pigmented) M12.2 Non-billable
ankle M12.27 Non-billable
elbow M12.22 Non-billable
foot joint M12.27 Non-billable
hand joint M12.24 Non-billable
hip M12.25 Non-billable
knee M12.26 Non-billable
multiple site M12.29
pelvic region M12.25 Non-billable
shoulder M12.21 Non-billable
specified joint NEC M12.28
vertebrae M12.28
wrist M12.23 Non-billable
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.
