M20.03 - Swan-neck deformity

Version 2023
ICD-10:M20.03
Short Description:Swan-neck deformity
Long Description:Swan-neck deformity
Status: Not 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)

M20.03 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of swan-neck deformity. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Swan-neck deformity

Non-specific codes like M20.03 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for swan-neck deformity:

  • BILLABLE CODE - Use M20.031 for Swan-neck deformity of right finger(s)
  • BILLABLE CODE - Use M20.032 for Swan-neck deformity of left finger(s)
  • BILLABLE CODE - Use M20.039 for Swan-neck deformity of unspecified finger(s)

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

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:


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Code History