ICD-10 Diagnosis Code M21.271

Flexion deformity, right ankle and toes

Diagnosis Code M21.271

ICD-10: M21.271
Short Description: Flexion deformity, right ankle and toes
Long Description: Flexion deformity, right ankle and toes
This is the 2017 version of the ICD-10-CM diagnosis code M21.271

Valid for Submission
The code M21.271 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Other acquired deformities of limbs (M21)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code M21.271 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 564 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC
  • 565 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC
  • 566 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC

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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.

Information for Patients


Ankle Injuries and Disorders

Your ankle bone and the ends of your two lower leg bones make up the ankle joint. Your ligaments, which connect bones to one another, stabilize and support it. Your muscles and tendons move it.

The most common ankle problems are sprains and fractures. A sprain is an injury to the ligaments. It may take a few weeks to many months to heal completely. A fracture is a break in a bone. You can also injure other parts of the ankle such as tendons, which join muscles to bone, and cartilage, which cushions your joints. Ankle sprains and fractures are common sports injuries.

  • Ankle arthroscopy
  • Ankle fracture - aftercare
  • Ankle pain
  • Ankle replacement
  • Ankle sprain - aftercare
  • Foot, leg, and ankle swelling


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Toe Injuries and Disorders

Fourteen of the 26 bones in your feet are in your toes. The toes, particularly your big toe, help you move and keep your balance. Playing sports, running, stubbing your toe, and dropping something on your foot can damage your toes. Wearing shoes that are too loose or too tight can also cause toe problems. Certain diseases, such as severe arthritis, can cause toe problems and pain. Gout often causes pain in the big toe.

Common toe problems include

  • Corns and bunions
  • Ingrown toenails
  • Sprains and dislocations
  • Fractures

Treatments for toe injuries and disorders vary. They might include shoe inserts or special shoes, padding, taping, medicines, rest, and in severe cases, surgery.

  • Broken toe - self care
  • Bunion removal
  • Bunions
  • Clubbing of the fingers or toes
  • Hammer toe
  • Hammer toe repair
  • Hammer toe repair - discharge
  • Polydactyly


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