ICD-10-CM Code M21.621

Bunionette of right foot

Version 2020 Billable Code

Valid for Submission

M21.621 is a billable code used to specify a medical diagnosis of bunionette of right foot. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M21.621 might also be used to specify conditions or terms like bilateral tailor's bunion of feet, mass of joint of left foot, mass of joint of right foot, mass of joint of right foot, mass of lesser toe, mass of lesser toe, etc

ICD-10:M21.621
Short Description:Bunionette of right foot
Long Description:Bunionette of right foot

Synonyms

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

  • Bilateral Tailor's bunion of feet
  • Mass of joint of left foot
  • Mass of joint of right foot
  • Mass of joint of right foot
  • Mass of lesser toe
  • Mass of lesser toe
  • Tailor's bunion of left foot
  • Tailor's bunion of right foot
  • Tailor's bunion of right foot

Diagnostic Related Groups

The ICD-10 code M21.621 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 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

Replacement Code

M21621 replaces the following previously assigned ICD-10 code(s):

  • M20.11 - Hallux valgus (acquired), right foot

Convert M21.621 to ICD-9

  • 727.1 - Bunion (Approximate Flag)

Code Classification

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

Code History

  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


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.


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