2020 ICD-10-CM Diagnosis Code M21.611

Bunion of right foot

    2017 - New Code 2018 2019 2020 Billable/Specific Code
  • M21.611 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM M21.611 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M21.611 - other international versions of ICD-10 M21.611 may differ.
The following code(s) above M21.611 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 M21.611:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • 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
    2020 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 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
  • M21.6
    ICD-10-CM Diagnosis Code M21.6

    Other acquired deformities of foot

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    Other acquired deformities of foot
Approximate Synonyms
  • Bilateral bunion
  • Right bunion
  • Swelling of first metatarsal joint of hallux of both feet
  • Swelling of first metatarsal joint of hallux of right foot
ICD-10-CM M21.611 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 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 M21.611 to ICD-9-CM

Code History
  • 2017 (effective 10/1/2016): New code
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To M21.611
M21.53 Acquired clawfoot
M21.531 …… right foot
M21.532 …… left foot
M21.539 …… unspecified foot
M21.54 Acquired clubfoot
M21.541 …… right foot
M21.542 …… left foot
M21.549 …… unspecified foot
M21.6 Other acquired deformities of foot
M21.61 Bunion
M21.611 …… of right foot
M21.612 …… of left foot
M21.619 …… of unspecified foot
M21.62 Bunionette
M21.621 …… of right foot
M21.622 …… of left foot
M21.629 …… of unspecified foot
M21.6X Other acquired deformities of foot
M21.6X1 Other acquired deformities of right foot
M21.6X2 Other acquired deformities of left foot
M21.6X9 Other acquired deformities of unspecified foot

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