M20.021 - Boutonniere deformity of right finger(s)

Version 2023
ICD-10:M20.021
Short Description:Boutonniere deformity of right finger(s)
Long Description:Boutonniere deformity of right finger(s)
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Acquired deformities of fingers and toes (M20)

M20.021 is a billable ICD-10 code used to specify a medical diagnosis of boutonniere deformity of right finger(s). The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

Approximate Synonyms

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

Convert to ICD-9 Code

Source ICD-10 CodeTarget ICD-9 Code
M20.021736.21 - Boutonniere deformity
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


Finger Injuries and Disorders

You use your fingers and thumbs to do everything from grasping objects to playing musical instruments to typing. When there is something wrong with them, it can make life difficult. Common problems include:


[Learn More in MedlinePlus]

Code History