ICD-10-CM Code M21.949

Unspecified acquired deformity of hand, unspecified hand

Version 2020 Billable Code

Valid for Submission

M21.949 is a billable code used to specify a medical diagnosis of unspecified acquired deformity of hand, unspecified hand. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M21.949 might also be used to specify conditions or terms like absent bone in hand, acquired deformity of hand, asymmetrical hands, deformity of hand, deformity of hand due to rheumatoid arthritis, deformity of metacarpal, etc

ICD-10:M21.949
Short Description:Unspecified acquired deformity of hand, unspecified hand
Long Description:Unspecified acquired deformity of hand, unspecified hand

Synonyms

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

  • Absent bone in hand
  • Acquired deformity of hand
  • Asymmetrical hands
  • Deformity of hand
  • Deformity of hand due to rheumatoid arthritis
  • Deformity of metacarpal
  • O/E - hand joint abnormal
  • O/E - hands - big, spade-like
  • O/E - joint abnormal
  • Preacher's hand
  • Spade-like hand

Diagnostic Related Groups

The ICD-10 code M21.949 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 M21.949 to ICD-9

  • 736.00 - Forearm deformity NOS (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 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


Hand Injuries and Disorders

No matter how old you are or what you do for a living, you are always using your hands. When there is something wrong with them, you may not be able to do your regular activities.

Hand problems include

  • Carpal tunnel syndrome - compression of a nerve as it goes through the wrist, often making your fingers feel numb
  • Injuries that result in fractures, ruptured ligaments and dislocations
  • Osteoarthritis - wear-and-tear arthritis, which can also cause deformity
  • Tendinitis - irritation of the tendons
  • Disorders and injuries of your fingers and thumb

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