ICD-10-CM Code M21.90

Unspecified acquired deformity of unspecified limb

Version 2020 Billable Code

Valid for Submission

M21.90 is a billable code used to specify a medical diagnosis of unspecified acquired deformity of unspecified limb. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M21.90 might also be used to specify conditions or terms like acquired deformity of joint of upper limb, acquired deformity of limb, acquired deformity of the wrist / hand, angulation deformity of lower limb, deformity of limb, form of joint - finding, etc

ICD-10:M21.90
Short Description:Unspecified acquired deformity of unspecified limb
Long Description:Unspecified acquired deformity of unspecified limb

Index to Diseases and Injuries

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 the code M21.90 are found in the index:


Synonyms

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

  • Acquired deformity of joint of upper limb
  • Acquired deformity of limb
  • Acquired deformity of the wrist / hand
  • Angulation deformity of lower limb
  • Deformity of limb
  • Form of joint - finding
  • Form of joint - finding
  • Joint deformity
  • Joint deviation
  • Multiple joint deformity

Diagnostic Related Groups

The ICD-10 code M21.90 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 M21.90 to ICD-9

  • 736.9 - Acq limb 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