ICD-10-CM
ICD-10 code for De Quervain's tenosynovitis: M65.4
The closest CDC title for "De Quervain's tenosynovitis" is M65.4, Radial styloid tenosynovitis [de Quervain]. M65.4 is a billable code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
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Codes under M65, then other CDC titles that name radial styloid tenosynovitis [de quervain]
A header groups codes and is not billed. A billable code is one you can report.
- M65Synovitis and tenosynovitisHeader
- M65.0Abscess of tendon sheathHeader
- M65.00Abscess of tendon sheath, unspecified siteBillable
- M65.01Abscess of tendon sheath, shoulderHeader
- M65.011Abscess of tendon sheath, right shoulderBillable
- M65.012Abscess of tendon sheath, left shoulderBillable
- M65.019Abscess of tendon sheath, unspecified shoulderBillable
- M65.02Abscess of tendon sheath, upper armHeader
- M65.021Abscess of tendon sheath, right upper armBillable
- M65.022Abscess of tendon sheath, left upper armBillable
- M65.029Abscess of tendon sheath, unspecified upper armBillable
- M65.03Abscess of tendon sheath, forearmHeader
- M65.031Abscess of tendon sheath, right forearmBillable
- M65.032Abscess of tendon sheath, left forearmBillable
- M65.039Abscess of tendon sheath, unspecified forearmBillable
- M65.04Abscess of tendon sheath, handHeader
- M65.041Abscess of tendon sheath, right handBillable
- M65.042Abscess of tendon sheath, left handBillable
- M65.049Abscess of tendon sheath, unspecified handBillable
- M65.05Abscess of tendon sheath, thighHeader
- M65.051Abscess of tendon sheath, right thighBillable
- M65.052Abscess of tendon sheath, left thighBillable
- M65.059Abscess of tendon sheath, unspecified thighBillable
- M65.06Abscess of tendon sheath, lower legHeader
- M65.061Abscess of tendon sheath, right lower legBillable
- M65.062Abscess of tendon sheath, left lower legBillable
- M65.069Abscess of tendon sheath, unspecified lower legBillable
- M65.07Abscess of tendon sheath, ankle and footHeader
- M65.071Abscess of tendon sheath, right ankle and footBillable
- M65.072Abscess of tendon sheath, left ankle and footBillable
- M65.079Abscess of tendon sheath, unspecified ankle and footBillable
- M65.08Abscess of tendon sheath, other siteBillable
- M65.1Other infective (teno) synovitis, Other infective (teno)synovitisHeader
- M65.10Other infective (teno) synovitis, unspecified site, Other infective (teno)synovitis, unspecified siteBillable
- M65.11Other infective (teno) synovitis, shoulder, Other infective (teno)synovitis, shoulderHeader
- M65.111Other infective (teno) synovitis, right shoulder, Other infective (teno)synovitis, right shoulderBillable
- M65.112Other infective (teno) synovitis, left shoulder, Other infective (teno)synovitis, left shoulderBillable
- M65.119Other infective (teno) synovitis, unspecified shoulder, Other infective (teno)synovitis, unspecified shoulderBillable
- M65.12Other infective (teno) synovitis, elbow, Other infective (teno)synovitis, elbowHeader
- M65.121Other infective (teno) synovitis, right elbow, Other infective (teno)synovitis, right elbowBillable
- M65.122Other infective (teno) synovitis, left elbow, Other infective (teno)synovitis, left elbowBillable
- M65.129Other infective (teno) synovitis, unspecified elbow, Other infective (teno)synovitis, unspecified elbowBillable
- M65.13Other infective (teno) synovitis, wrist, Other infective (teno)synovitis, wristHeader
- M65.131Other infective (teno) synovitis, right wrist, Other infective (teno)synovitis, right wristBillable
- M65.132Other infective (teno) synovitis, left wrist, Other infective (teno)synovitis, left wristBillable
- M65.139Other infective (teno) synovitis, unspecified wrist, Other infective (teno)synovitis, unspecified wristBillable
- M65.14Other infective (teno) synovitis, hand, Other infective (teno)synovitis, handHeader
- M65.141Other infective (teno) synovitis, right hand, Other infective (teno)synovitis, right handBillable
- M65.142Other infective (teno) synovitis, left hand, Other infective (teno)synovitis, left handBillable
- M65.149Other infective (teno) synovitis, unspecified hand, Other infective (teno)synovitis, unspecified handBillable
- M65.15Other infective (teno) synovitis, hip, Other infective (teno)synovitis, hipHeader
- M65.151Other infective (teno) synovitis, right hip, Other infective (teno)synovitis, right hipBillable
- M65.152Other infective (teno) synovitis, left hip, Other infective (teno)synovitis, left hipBillable
- M65.159Other infective (teno) synovitis, unspecified hip, Other infective (teno)synovitis, unspecified hipBillable
- M65.16Other infective (teno) synovitis, knee, Other infective (teno)synovitis, kneeHeader
- M65.161Other infective (teno) synovitis, right knee, Other infective (teno)synovitis, right kneeBillable
- M65.162Other infective (teno) synovitis, left knee, Other infective (teno)synovitis, left kneeBillable
- M65.169Other infective (teno) synovitis, unspecified knee, Other infective (teno)synovitis, unspecified kneeBillable
- M65.17Other infective (teno) synovitis, ankle and foot, Other infective (teno)synovitis, ankle and footHeader
- M65.171Other infective (teno) synovitis, right ankle and foot, Other infective (teno)synovitis, right ankle and footBillable
- M65.172Other infective (teno) synovitis, left ankle and foot, Other infective (teno)synovitis, left ankle and footBillable
- M65.179Other infective (teno) synovitis, unspecified ankle and foot, Other infective (teno)synovitis, unspecified ankle and footBillable
- M65.18Other infective (teno) synovitis, other site, Other infective (teno)synovitis, other siteBillable
- M65.19Other infective (teno) synovitis, multiple sites, Other infective (teno)synovitis, multiple sitesBillable
- M65.2Calcific tendinitisHeader
- M65.20Calcific tendinitis, unspecified siteBillable
- M65.22Calcific tendinitis, upper armHeader
- M65.221Calcific tendinitis, right upper armBillable
- M65.222Calcific tendinitis, left upper armBillable
- M65.229Calcific tendinitis, unspecified upper armBillable
- M65.23Calcific tendinitis, forearmHeader
- M65.231Calcific tendinitis, right forearmBillable
- M65.232Calcific tendinitis, left forearmBillable
- M65.239Calcific tendinitis, unspecified forearmBillable
- M65.24Calcific tendinitis, handHeader
- M65.241Calcific tendinitis, right handBillable
- M65.242Calcific tendinitis, left handBillable
- M65.249Calcific tendinitis, unspecified handBillable
- M65.25Calcific tendinitis, thighHeader
- M65.251Calcific tendinitis, right thighBillable
- M65.252Calcific tendinitis, left thighBillable
- M65.259Calcific tendinitis, unspecified thighBillable
- M65.26Calcific tendinitis, lower legHeader
- M65.261Calcific tendinitis, right lower legBillable
- M65.262Calcific tendinitis, left lower legBillable
- M65.269Calcific tendinitis, unspecified lower legBillable
- M65.27Calcific tendinitis, ankle and footHeader
- M65.271Calcific tendinitis, right ankle and footBillable
- M65.272Calcific tendinitis, left ankle and footBillable
- M65.279Calcific tendinitis, unspecified ankle and footBillable
- M65.28Calcific tendinitis, other siteBillable
- M65.29Calcific tendinitis, multiple sitesBillable
- M65.3Trigger fingerHeader
- M65.30Trigger finger, unspecified fingerBillable
- M65.31Trigger thumbHeader
- M65.311Trigger thumb, right thumbBillable
- M65.312Trigger thumb, left thumbBillable
- M65.319Trigger thumb, unspecified thumbBillable
- M65.32Trigger finger, index fingerHeader
- M65.321Trigger finger, right index fingerBillable
- M65.322Trigger finger, left index fingerBillable
- M65.329Trigger finger, unspecified index fingerBillable
- M65.33Trigger finger, middle fingerHeader
- M65.331Trigger finger, right middle fingerBillable
- M65.332Trigger finger, left middle fingerBillable
- M65.339Trigger finger, unspecified middle fingerBillable
- M65.34Trigger finger, ring fingerHeader
- M65.341Trigger finger, right ring fingerBillable
- M65.342Trigger finger, left ring fingerBillable
- M65.349Trigger finger, unspecified ring fingerBillable
- M65.35Trigger finger, little fingerHeader
- M65.351Trigger finger, right little fingerBillable
- M65.352Trigger finger, left little fingerBillable
- M65.359Trigger finger, unspecified little fingerBillable
- M65.4Radial styloid tenosynovitis [de Quervain]Billable
- M65.8Other synovitis and tenosynovitisHeader
- M65.80Other synovitis and tenosynovitis, unspecified siteBillable
- M65.81Other synovitis and tenosynovitis, shoulderHeader
- M65.811Other synovitis and tenosynovitis, right shoulderBillable
- M65.812Other synovitis and tenosynovitis, left shoulderBillable
- M65.819Other synovitis and tenosynovitis, unspecified shoulderBillable
- M65.82Other synovitis and tenosynovitis, upper armHeader
- M65.821Other synovitis and tenosynovitis, right upper armBillable
- M65.822Other synovitis and tenosynovitis, left upper armBillable
- M65.829Other synovitis and tenosynovitis, unspecified upper armBillable
- M65.83Other synovitis and tenosynovitis, forearmHeader
- M65.831Other synovitis and tenosynovitis, right forearmBillable
- M65.832Other synovitis and tenosynovitis, left forearmBillable
- M65.839Other synovitis and tenosynovitis, unspecified forearmBillable
- M65.84Other synovitis and tenosynovitis, handHeader
- M65.841Other synovitis and tenosynovitis, right handBillable
- M65.842Other synovitis and tenosynovitis, left handBillable
- M65.849Other synovitis and tenosynovitis, unspecified handBillable
- M65.85Other synovitis and tenosynovitis, thighHeader
- M65.851Other synovitis and tenosynovitis, right thighBillable
- M65.852Other synovitis and tenosynovitis, left thighBillable
- M65.859Other synovitis and tenosynovitis, unspecified thighBillable
- M65.86Other synovitis and tenosynovitis, lower legHeader
- M65.861Other synovitis and tenosynovitis, right lower legBillable
- M65.862Other synovitis and tenosynovitis, left lower legBillable
- M65.869Other synovitis and tenosynovitis, unspecified lower legBillable
- M65.87Other synovitis and tenosynovitis, ankle and footHeader
- M65.871Other synovitis and tenosynovitis, right ankle and footBillable
- M65.872Other synovitis and tenosynovitis, left ankle and footBillable
- M65.879Other synovitis and tenosynovitis, unspecified ankle and footBillable
- M65.88Other synovitis and tenosynovitis, other siteBillable
- M65.89Other synovitis and tenosynovitis, multiple sitesBillable
- M65.9Synovitis and tenosynovitis, unspecifiedHeader
- M65.90Unspecified synovitis and tenosynovitis, unspecified siteBillable
- M65.91Unspecified synovitis and tenosynovitis, shoulderHeader
- M65.911Unspecified synovitis and tenosynovitis, right shoulderBillable
- M65.912Unspecified synovitis and tenosynovitis, left shoulderBillable
- M65.919Unspecified synovitis and tenosynovitis, unspecified shoulderBillable
- M65.92Unspecified synovitis and tenosynovitis, upper armHeader
- M65.921Unspecified synovitis and tenosynovitis, right upper armBillable
- M65.922Unspecified synovitis and tenosynovitis, left upper armBillable
- M65.929Unspecified synovitis and tenosynovitis, unspecified upper armBillable
- M65.93Unspecified synovitis and tenosynovitis, forearmHeader
- M65.931Unspecified synovitis and tenosynovitis, right forearmBillable
- M65.932Unspecified synovitis and tenosynovitis, left forearmBillable
- M65.939Unspecified synovitis and tenosynovitis, unspecified forearmBillable
- M65.94Unspecified synovitis and tenosynovitis, handHeader
- M65.941Unspecified synovitis and tenosynovitis, right handBillable
- M65.942Unspecified synovitis and tenosynovitis, left handBillable
- M65.949Unspecified synovitis and tenosynovitis, unspecified handBillable
- M65.95Unspecified synovitis and tenosynovitis, thighHeader
- M65.951Unspecified synovitis and tenosynovitis, right thighBillable
- M65.952Unspecified synovitis and tenosynovitis, left thighBillable
- M65.959Unspecified synovitis and tenosynovitis, unspecified thighBillable
- M65.96Unspecified synovitis and tenosynovitis, lower legHeader
- M65.961Unspecified synovitis and tenosynovitis, right lower legBillable
- M65.962Unspecified synovitis and tenosynovitis, left lower legBillable
- M65.969Unspecified synovitis and tenosynovitis, unspecified lower legBillable
- M65.97Unspecified synovitis and tenosynovitis, ankle and footHeader
- M65.971Unspecified synovitis and tenosynovitis, right ankle and footBillable
- M65.972Unspecified synovitis and tenosynovitis, left ankle and footBillable
- M65.979Unspecified synovitis and tenosynovitis, unspecified ankle and footBillable
- M65.98Unspecified synovitis and tenosynovitis, other siteBillable
- M65.99Unspecified synovitis and tenosynovitis, multiple sitesBillable
Excludes1
Excludes1 means these codes are not reported together.
From M65. A note on a category applies to every code under it.
- M70.0-Chronic crepitant synovitis of hand and wrist
- current injury - see injury of ligament or tendon by body region
- M70.-Soft tissue disorders related to use, overuse and pressure
Related conditions
Related pages
- M65.4 code detailsNotes, nearby codes, CMS-HCC group
- Category M65Every code under it
- Chapter 13Diseases of the musculoskeletal system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for De Quervain's tenosynovitis?
The closest CDC title for "De Quervain's tenosynovitis" is M65.4, Radial styloid tenosynovitis [de Quervain]. M65.4 is a billable code.
Is M65.4 billable?
Yes. M65.4 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to M65.4?
The CDC tabular list gives 3 Excludes1 notes (not coded together) for M65.4 and the categories above it. They are listed on this page.
What chapter is M65.4 in?
Chapter 13. Diseases of the musculoskeletal system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.