M65.1
Header — not billableOther infective (teno)synovitis
The ICD-10 code for other infective (teno)synovitis is M65.1.
M65.1 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M65.1
- M65.10Other infective (teno)synovitis, unspecified site
- M65.11Other infective (teno)synovitis, shouldernon-billable header
- M65.12Other infective (teno)synovitis, elbownon-billable header
- M65.13Other infective (teno)synovitis, wristnon-billable header
- M65.14Other infective (teno)synovitis, handnon-billable header
- M65.15Other infective (teno)synovitis, hipnon-billable header
- M65.16Other infective (teno)synovitis, kneenon-billable header
- M65.17Other infective (teno)synovitis, ankle and footnon-billable header
- M65.18Other infective (teno)synovitis, other site
- M65.19Other infective (teno)synovitis, multiple sites
Related codes in this category
- M65.0Abscess of tendon sheathnon-billable header
- M65.2Calcific tendinitisnon-billable header
- M65.3Trigger fingernon-billable header
- M65.4Radial styloid tenosynovitis [de Quervain]
- M65.8Other synovitis and tenosynovitisnon-billable header
- M65.9Synovitis and tenosynovitis, unspecifiednon-billable header
- M65.1Other infective (teno)synovitisnon-billable header