ICD-10-CM Code M20.019

Mallet finger of unspecified finger(s)

Version 2020 Billable Code

Valid for Submission

M20.019 is a billable code used to specify a medical diagnosis of mallet finger of unspecified finger(s). The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M20.019 might also be used to specify conditions or terms like acquired deformity of the thumb, acquired deformity of the thumb, injury of extensor tendon of hand, injury of extensor tendon of hand, injury of extensor tendon of hand, injury of extensor tendon of hand, etc

ICD-10:M20.019
Short Description:Mallet finger of unspecified finger(s)
Long Description:Mallet finger of unspecified finger(s)

Synonyms

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

  • Acquired deformity of the thumb
  • Acquired deformity of the thumb
  • Injury of extensor tendon of hand
  • Injury of extensor tendon of hand
  • Injury of extensor tendon of hand
  • Injury of extensor tendon of hand
  • Mallet finger
  • Mallet finger with closed tendon injury
  • Mallet finger with open tendon injury
  • Mallet thumb with closed tendon injury
  • Mallet thumb with open tendon injury
  • Open wound of wrist with tendon involvement
  • Rupture of extensor pollicis longus
  • Rupture of extensor pollicis longus
  • Rupture of extensor tendon of thumb
  • Rupture of extensor tendon of thumb
  • Rupture of tendon of thumb
  • Rupture of tendon of thumb
  • Rupture of tendon of wrist and hand
  • Rupture of tendon of wrist and hand

Diagnostic Related Groups

The ICD-10 code M20.019 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

Convert M20.019 to ICD-9

  • 736.1 - Mallet finger (Approximate Flag)

Code Classification

  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Other joint disorders (M20-M25)
      • Acquired deformities of fingers and toes (M20)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • 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


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

  • Injuries that result in fractures, ruptured ligaments and dislocations
  • Osteoarthritis - wear-and-tear arthritis. It can also cause deformity.
  • Tendinitis - irritation of the tendons
  • Dupuytren's contracture - a hereditary thickening of the tough tissue that lies just below the skin of your palm. It causes the fingers to stiffen and bend.
  • Trigger finger - an irritation of the sheath that surrounds the flexor tendons. It can cause the tendon to catch and release like a trigger.

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