2020 ICD-10-CM Diagnosis Code M22.1

Recurrent subluxation of patella

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • M22.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM M22.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M22.1 - other international versions of ICD-10 M22.1 may differ.
Applicable To
  • Incomplete dislocation of patella
The following code(s) above M22.1 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 M22.1:
  • 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
  • M22
    ICD-10-CM Diagnosis Code M22

    Disorder of patella

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • traumatic dislocation of patella (S83.0-)
    Disorder of patella
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
Code annotations containing back-references to M22.1:
  • Type 1 Excludes: M23
    ICD-10-CM Diagnosis Code M23

    Internal derangement of knee

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • ankylosis (M24.66)
    • current injury - see injury of knee and lower leg (S80-S89)
    • deformity of knee (M21.-)
    • osteochondritis dissecans (M93.2)
    • recurrent dislocation or subluxation of joints (M24.4)
    • recurrent dislocation or subluxation of patella (M22.0-M22.1)
  • Type 2 Excludes: M24.4
    ICD-10-CM Diagnosis Code M24.4

    Recurrent dislocation of joint

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Recurrent subluxation of joint
    Type 2 Excludes

Diagnosis Index entries containing back-references to M22.1:
  • Dislocation (articular)
    • patella S83.006
      ICD-10-CM Diagnosis Code S83.006

      Unspecified dislocation of unspecified patella

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      • recurrent (nontraumatic) M22.0-
        ICD-10-CM Diagnosis Code M22.0-

        Recurrent dislocation of patella

          2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
        • incomplete M22.1-

ICD-10-CM Codes Adjacent To M22.1
M21.959 Unspecified acquired deformity of unspecified thigh
M21.96 Unspecified acquired deformity of lower leg
M21.961 Unspecified acquired deformity of right lower leg
M21.962 Unspecified acquired deformity of left lower leg
M21.969 Unspecified acquired deformity of unspecified lower leg
M22 Disorder of patella
M22.0 Recurrent dislocation of patella
M22.00 …… unspecified knee
M22.01 …… right knee
M22.02 …… left knee
M22.1 Recurrent subluxation of patella
M22.10 …… unspecified knee
M22.11 …… right knee
M22.12 …… left knee
M22.2 Patellofemoral disorders
M22.2X Patellofemoral disorders
M22.2X1 …… right knee
M22.2X2 …… left knee
M22.2X9 …… unspecified knee
M22.3 Other derangements of patella
M22.3X Other derangements of patella

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