ICD-10 Diagnosis Code M66.321

Spontaneous rupture of flexor tendons, right upper arm

Diagnosis Code M66.321

ICD-10: M66.321
Short Description: Spontaneous rupture of flexor tendons, right upper arm
Long Description: Spontaneous rupture of flexor tendons, right upper arm
This is the 2017 version of the ICD-10-CM diagnosis code M66.321

Code Classification
  • Diseases of the musculoskeletal system and connective tissue
    • Disorders of synovium and tendon (M65-M67)
      • Spontaneous rupture of synovium and tendon (M66)

Information for Patients

Arm Injuries and Disorders

Of the 206 bones in your body, 3 of them are in your arm; the humerus, radius and ulna. Your arms are also made up of muscles, joints, tendons and other connective tissue. Injuries to any of these parts of the arm can occur during sports, a fall or an accident.

Types of arm injuries include

  • Tendinitis and bursitis
  • Sprains
  • Dislocations
  • Broken bones

Some nerve problems, arthritis, or cancers can affect the entire arm and cause pain, spasms, swelling and trouble moving. You may also have problems or injure specific parts of your arm, such as your hand, wrist, elbow or shoulder.

  • Arm CT scan
  • Brachial plexopathy
  • Radial head fracture - aftercare
  • Radial nerve dysfunction

[Read More]

Sprains and Strains

A sprain is a stretched or torn ligament. Ligaments are tissues that connect bones at a joint. Falling, twisting, or getting hit can all cause a sprain. Ankle and wrist sprains are common. Symptoms include pain, swelling, bruising, and being unable to move your joint. You might feel a pop or tear when the injury happens.

A strain is a stretched or torn muscle or tendon. Tendons are tissues that connect muscle to bone. Twisting or pulling these tissues can cause a strain. Strains can happen suddenly or develop over time. Back and hamstring muscle strains are common. Many people get strains playing sports. Symptoms include pain, muscle spasms, swelling, and trouble moving the muscle.

At first, treatment of both sprains and strains usually involves resting the injured area, icing it, wearing a bandage or device that compresses the area, and medicines. Later treatment might include exercise and physical therapy.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

  • Ankle sprain - aftercare
  • Elbow sprain -- aftercare
  • Foot sprain - aftercare
  • Hamstring strain - aftercare
  • Hip flexor strain -- aftercare
  • Sprains
  • Strains
  • Tendon repair
  • Wrist sprain - aftercare

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