2024 ICD-10-CM Diagnosis Code M21.6X2

Other acquired deformities of left foot

ICD-10-CM Code:
M21.6X2
ICD-10 Code for:
Other acquired deformities of left foot
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

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

M21.6X2 is a billable diagnosis code used to specify a medical diagnosis of other acquired deformities of left foot. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acquired abduction deformity of foot
  • Acquired abduction deformity of foot
  • Acquired calcaneovalgus deformity of bilateral feet
  • Acquired calcaneovalgus deformity of left foot
  • Acquired calcaneovalgus deformity of left foot
  • Acquired calcaneovalgus deformity of right foot
  • Acquired cavovarus deformity of bilateral feet
  • Acquired cavovarus deformity of foot
  • Acquired cavovarus deformity of foot
  • Acquired cavovarus deformity of left foot
  • Acquired cavovarus deformity of left foot
  • Acquired cavovarus deformity of right foot
  • Acquired cavus deformity of foot
  • Acquired cavus deformity of foot
  • Acquired cavus deformity of foot
  • Acquired cavus deformity of foot
  • Acquired cavus deformity of left foot
  • Acquired cavus deformity of left foot
  • Acquired cavus deformity of left foot
  • Acquired cavus deformity of right foot
  • Acquired cavus deformity of right foot
  • Acquired forefoot abductus
  • Acquired forefoot abductus
  • Acquired left metatarsus adductus
  • Acquired left metatarsus adductus
  • Acquired metatarsus adductus
  • Acquired metatarsus adductus
  • Acquired metatarsus adductus of bilateral feet
  • Acquired pronation deformity of ankle
  • Acquired pronation deformity of ankle
  • Acquired pronation deformity of left ankle
  • Acquired pronation deformity of left ankle
  • Acquired pronation deformity of right ankle
  • Acquired right metatarsus adductus
  • Bilateral acquired calcaneovarus deformity of feet
  • Bilateral acquired cavus deformity of feet
  • Bilateral acquired pronation deformity of ankles
  • Bilateral deformity of feet due to rheumatoid arthritis
  • Bilateral talipes calcaneovalgus
  • Calcaneovalgus deformity of foot
  • Calcaneovalgus deformity of foot
  • Cavovarus deformity of foot
  • Cavovarus deformity of foot
  • Deformity of foot due to rheumatoid arthritis
  • Deformity of foot due to rheumatoid arthritis
  • Deformity of left foot co-occurrent and due to rheumatoid arthritis
  • Plantarflexion deformity of bilateral feet
  • Plantarflexion deformity of foot
  • Plantarflexion deformity of foot
  • Plantarflexion deformity of left foot
  • Plantarflexion deformity of left foot
  • Plantarflexion deformity of right foot
  • Varus deformities of feet
  • Varus deformities of feet

Clinical Classification

Convert M21.6X2 to ICD-9-CM

  • ICD-9-CM Code: 736.79 - Acq ankle-foot def NEC
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


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.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.