ICD-10 Diagnosis Code M21.6

Other acquired deformities of foot

Diagnosis Code M21.6

ICD-10: M21.6
Short Description: Other acquired deformities of foot
Long Description: Other acquired deformities of foot
This is the 2017 version of the ICD-10-CM diagnosis code M21.6

Not Valid for Submission
The code M21.6 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)
      • Other acquired deformities of limbs (M21)

Information for Medical Professionals

Index of Diseases and Injuries
References found for the code M21.6 in the Index of Diseases and Injuries:


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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