ICD-10 Diagnosis Code M20.1

Hallux valgus (acquired)

Diagnosis Code M20.1

ICD-10: M20.1
Short Description: Hallux valgus (acquired)
Long Description: Hallux valgus (acquired)
This is the 2017 version of the ICD-10-CM diagnosis code M20.1

Not Valid for Submission
The code M20.1 is a "header" and not valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Acquired deformities of fingers and toes (M20)

Information for Patients


Foot Injuries and Disorders

Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:

  • Bunions - hard, painful bumps on the big toe joint
  • Corns and calluses - thickened skin from friction or pressure
  • Plantar warts - warts on the soles of your feet
  • Fallen arches - also called flat feet

Ill-fitting shoes often cause these problems. Aging and being overweight also increase your chances of having foot problems.

  • Claw foot (Medical Encyclopedia)
  • Clubfoot (Medical Encyclopedia)
  • Common peroneal nerve dysfunction (Medical Encyclopedia)
  • Extremity x-ray (Medical Encyclopedia)
  • Flat feet (Medical Encyclopedia)
  • Foot pain (Medical Encyclopedia)
  • Foot sprain - aftercare (Medical Encyclopedia)
  • Foot, leg, and ankle swelling (Medical Encyclopedia)
  • Hand or foot spasms (Medical Encyclopedia)
  • High arch (Medical Encyclopedia)
  • Metatarsal fracture (acute) - aftercare (Medical Encyclopedia)
  • Metatarsal stress fractures - aftercare (Medical Encyclopedia)
  • Metatarsus adductus (Medical Encyclopedia)
  • Morton neuroma (Medical Encyclopedia)


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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 (Medical Encyclopedia)
  • Bunion removal (Medical Encyclopedia)
  • Bunions (Medical Encyclopedia)
  • Clubbing of the fingers or toes (Medical Encyclopedia)
  • Hammer toe (Medical Encyclopedia)
  • Hammer toe repair (Medical Encyclopedia)
  • Hammer toe repair - discharge (Medical Encyclopedia)
  • Polydactyly (Medical Encyclopedia)


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