2021 ICD-10-CM Diagnosis Code M21.249

Flexion deformity, unspecified finger joints

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M21.249 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M21.249 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M21.249 - other international versions of ICD-10 M21.249 may differ.
The following code(s) above M21.249 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M21.249:
  • M00-M99
    2021 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
  • M20-M25
    2021 ICD-10-CM Range M20-M25

    Other joint disorders

    Type 2 Excludes
    Other joint disorders
  • M21
    ICD-10-CM Diagnosis Code M21

    Other acquired deformities of limbs

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • acquired absence of limb (Z89.-)
    • congenital absence of limbs (Q71-Q73)
    • congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)
    Type 2 Excludes
    • acquired deformities of fingers or toes (M20.-)
    • coxa plana (M91.2)
    Other acquired deformities of limbs
Approximate Synonyms
  • Flexion deformity of finger
  • Flexion deformity of finger joint
ICD-10-CM M21.249 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 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 M21.249 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To M21.249
M21.221 Flexion deformity, right elbow
M21.222 Flexion deformity, left elbow
M21.229 Flexion deformity, unspecified elbow
M21.23 Flexion deformity, wrist
M21.231 Flexion deformity, right wrist
M21.232 Flexion deformity, left wrist
M21.239 Flexion deformity, unspecified wrist
M21.24 Flexion deformity, finger joints
M21.241 Flexion deformity, right finger joints
M21.242 Flexion deformity, left finger joints
M21.249 Flexion deformity, unspecified finger joints
M21.25 Flexion deformity, hip
M21.251 Flexion deformity, right hip
M21.252 Flexion deformity, left hip
M21.259 Flexion deformity, unspecified hip
M21.26 Flexion deformity, knee
M21.261 Flexion deformity, right knee
M21.262 Flexion deformity, left knee
M21.269 Flexion deformity, unspecified knee
M21.27 Flexion deformity, ankle and toes
M21.271 Flexion deformity, right ankle and toes

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.