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ICD-10-CM · FY 2026 APRIL UPDATE

M65.1

Other infective (teno)synovitis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M65.10Other infective (teno)synovitis, unspecified siteBillable
M65.11Other infective (teno)synovitis, shoulderCategory
M65.111Other infective (teno)synovitis, right shoulderBillable
M65.112Other infective (teno)synovitis, left shoulderBillable
M65.119Other infective (teno)synovitis, unspecified shoulderBillable
M65.12Other infective (teno)synovitis, elbowCategory
M65.121Other infective (teno)synovitis, right elbowBillable
M65.122Other infective (teno)synovitis, left elbowBillable
M65.129Other infective (teno)synovitis, unspecified elbowBillable
M65.13Other infective (teno)synovitis, wristCategory
M65.131Other infective (teno)synovitis, right wristBillable
M65.132Other infective (teno)synovitis, left wristBillable
M65.139Other infective (teno)synovitis, unspecified wristBillable
M65.14Other infective (teno)synovitis, handCategory
M65.141Other infective (teno)synovitis, right handBillable
M65.142Other infective (teno)synovitis, left handBillable
M65.149Other infective (teno)synovitis, unspecified handBillable
M65.15Other infective (teno)synovitis, hipCategory
M65.151Other infective (teno)synovitis, right hipBillable
M65.152Other infective (teno)synovitis, left hipBillable
M65.159Other infective (teno)synovitis, unspecified hipBillable
M65.16Other infective (teno)synovitis, kneeCategory
M65.161Other infective (teno)synovitis, right kneeBillable
M65.162Other infective (teno)synovitis, left kneeBillable
M65.169Other infective (teno)synovitis, unspecified kneeBillable
M65.17Other infective (teno)synovitis, ankle and footCategory
M65.171Other infective (teno)synovitis, right ankle and footBillable
M65.172Other infective (teno)synovitis, left ankle and footBillable
M65.179Other infective (teno)synovitis, unspecified ankle and footBillable
M65.18Other infective (teno)synovitis, other siteBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.