2020 ICD-10-CM Diagnosis Code M12.40

Intermittent hydrarthrosis, unspecified site

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M12.40 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 M12.40 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M12.40 - other international versions of ICD-10 M12.40 may differ.
The following code(s) above M12.40 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 M12.40:
  • 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
  • M12
    ICD-10-CM Diagnosis Code M12

    Other and unspecified arthropathy

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Other and unspecified arthropathy
Approximate Synonyms
  • Intermittent effusion of joint
  • Intermittent hydrarthrosis
ICD-10-CM M12.40 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 553 Bone diseases and arthropathies with mcc
  • 554 Bone diseases and arthropathies without mcc

Convert M12.40 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

Diagnosis Index entries containing back-references to M12.40:

ICD-10-CM Codes Adjacent To M12.40
M12.361 Palindromic rheumatism, right knee
M12.362 Palindromic rheumatism, left knee
M12.369 Palindromic rheumatism, unspecified knee
M12.37 Palindromic rheumatism, ankle and foot
M12.371 Palindromic rheumatism, right ankle and foot
M12.372 Palindromic rheumatism, left ankle and foot
M12.379 Palindromic rheumatism, unspecified ankle and foot
M12.38 …… other specified site
M12.39 …… multiple sites
M12.4 Intermittent hydrarthrosis
M12.40 …… unspecified site
M12.41 Intermittent hydrarthrosis, shoulder
M12.411 Intermittent hydrarthrosis, right shoulder
M12.412 Intermittent hydrarthrosis, left shoulder
M12.419 Intermittent hydrarthrosis, unspecified shoulder
M12.42 Intermittent hydrarthrosis, elbow
M12.421 Intermittent hydrarthrosis, right elbow
M12.422 Intermittent hydrarthrosis, left elbow
M12.429 Intermittent hydrarthrosis, unspecified elbow
M12.43 Intermittent hydrarthrosis, wrist
M12.431 Intermittent hydrarthrosis, right wrist

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