M65.9
Header — not billableSynovitis and tenosynovitis, unspecified
The ICD-10 code for synovitis and tenosynovitis, unspecified is M65.9.
M65.9 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.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M65.9
- M65.90Unspecified synovitis and tenosynovitis, unspecified site
- M65.91Unspecified synovitis and tenosynovitis, shouldernon-billable header
- M65.92Unspecified synovitis and tenosynovitis, upper armnon-billable header
- M65.93Unspecified synovitis and tenosynovitis, forearmnon-billable header
- M65.94Unspecified synovitis and tenosynovitis, handnon-billable header
- M65.95Unspecified synovitis and tenosynovitis, thighnon-billable header
- M65.96Unspecified synovitis and tenosynovitis, lower legnon-billable header
- M65.97Unspecified synovitis and tenosynovitis, ankle and footnon-billable header
- M65.98Unspecified synovitis and tenosynovitis, other site
- M65.99Unspecified synovitis and tenosynovitis, multiple sites
Related codes in this category
- M65.0Abscess of tendon sheathnon-billable header
- M65.1Other infective (teno)synovitisnon-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
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 72700