ICD-10 Diagnosis Code M65.312

Trigger thumb, left thumb

Diagnosis Code M65.312

ICD-10: M65.312
Short Description: Trigger thumb, left thumb
Long Description: Trigger thumb, left thumb
This is the 2017 version of the ICD-10-CM diagnosis code M65.312

Code Classification
  • Diseases of the musculoskeletal system and connective tissue
    • Disorders of synovium and tendon (M65-M67)
      • Synovitis and tenosynovitis (M65)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code M65.312 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Bilateral trigger thumbs
  • Swelling of finger
  • Swollen thumb

Information for Patients

Finger Injuries and Disorders

You use your fingers and thumbs to do everything from grasping objects to playing musical instruments to typing. When there is something wrong with them, it can make life difficult. Common problems include

  • Injuries that result in fractures, ruptured ligaments and dislocations
  • Osteoarthritis - wear-and-tear arthritis. It can also cause deformity.
  • Tendinitis - irritation of the tendons
  • Dupuytren's contracture - a hereditary thickening of the tough tissue that lies just below the skin of your palm. It causes the fingers to stiffen and bend.
  • Trigger finger - an irritation of the sheath that surrounds the flexor tendons. It can cause the tendon to catch and release like a trigger.

  • Claw hand
  • Clubbing of the fingers or toes
  • Finger pain
  • Mallet finger - aftercare
  • Polydactyly
  • Smashed fingers
  • Trigger finger

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Also called: Tendonitis

Tendons are flexible bands of tissue that connect muscles to bones. They help your muscles move your bones. Tendinitis is the severe swelling of a tendon.

Tendinitis usually happens after repeated injury to an area such as the wrist or ankle. It causes pain and soreness around a joint. Some common forms of tendinitis are named after the sports that increase their risk. They include tennis elbow, golfer's elbow, pitcher's shoulder, swimmer's shoulder, and jumper's knee.

Doctors diagnose tendinitis with your medical history, a physical exam, and imaging tests. The first step in treatment is to reduce pain and swelling. Rest, wrapping or elevating the affected area, and medicines can help. Ice is helpful for recent, severe injuries. Other treatments include ultrasound, physical therapy, steroid injections, and surgery.

  • Achilles tendinitis
  • De Quervain tendinitis
  • Rotator cuff problems
  • Tendinitis
  • Tennis elbow
  • Tenosynovitis
  • What Are Bursitis and Tendinitis? - NIH - Easy-to-Read (National Institute of Arthritis and Musculoskeletal and Skin Diseases)

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