2020 ICD-10-CM Diagnosis Code M1A.2

Drug-induced chronic gout

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • M1A.2 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 M1A.2 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M1A.2 - other international versions of ICD-10 M1A.2 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code for adverse effect, if applicable, to identify drug (T36-T50
    ICD-10-CM Range T36-T50

    Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances

    Code First
    • , for adverse effects, the nature of the adverse effect, such as:
    • adverse effect NOS (T88.7)
    • aspirin gastritis (K29.-)
    • blood disorders (D56-D76)
    • contact dermatitis (L23-L25)
    • dermatitis due to substances taken internally (L27.-)
    • nephropathy (N14.0-N14.2)
    Includes
    • adverse effect of correct substance properly administered
    • poisoning by overdose of substance
    • poisoning by wrong substance given or taken in error
    • underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed
    Note
    • The drug giving rise to the adverse effect should be identified by use of codes from categories T36-T50 with fifth or sixth character 5.
    Type 1 Excludes
    • toxic reaction to local anesthesia in pregnancy (O29.3-)
    Type 2 Excludes
    • abuse and dependence of psychoactive substances (F10-F19)
    • abuse of non-dependence-producing substances (F55.-)
    • drug reaction and poisoning affecting newborn (P00-P96)
    • pathological drug intoxication (inebriation) (F10-F19)
    Use Additional
    • code(s) to specify:
    • manifestations of poisoning
    • underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
    • underdosing of medication regimen (Z91.12-, Z91.13-)
    • T36 Poisoning by, adverse effect of and unde...
    • T37 Poisoning by, adverse effect of and unde...
    • T38 Poisoning by, adverse effect of and unde...
    • T39 Poisoning by, adverse effect of and unde...
    • T40 Poisoning by, adverse effect of and unde...
    • T41 Poisoning by, adverse effect of and unde...
    • T42 Poisoning by, adverse effect of and unde...
    • T43 Poisoning by, adverse effect of and unde...
    • T44 Poisoning by, adverse effect of and unde...
    • T45 Poisoning by, adverse effect of and unde...
    • T46 Poisoning by, adverse effect of and unde...
    • T47 Poisoning by, adverse effect of and unde...
    • T48 Poisoning by, adverse effect of and unde...
    • T49 Poisoning by, adverse effect of and unde...
    • T50 Poisoning by, adverse effect of and unde...
    with fifth or sixth character 5)
The following code(s) above M1A.2 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 M1A.2:
  • 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
  • M1A
    ICD-10-CM Diagnosis Code M1A

    Chronic gout

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Type 2 Excludes
    Use Additional
    • code to identify:
    • Autonomic neuropathy in diseases classified elsewhere (G99.0)
    • Calculus of urinary tract in diseases classified elsewhere (N22)
    • Cardiomyopathy in diseases classified elsewhere (I43)
    • Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
    • Disorders of iris and ciliary body in diseases classified elsewhere (H22)
    • Glomerular disorders in diseases classified elsewhere (N08)
    Chronic gout
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
ICD-10-CM Codes Adjacent To M1A.2
M1A.1721 …… with tophus (tophi)
M1A.179 Lead-induced chronic gout, unspecified ankle and foot
M1A.1790 …… without tophus (tophi)
M1A.1791 …… with tophus (tophi)
M1A.18 Lead-induced chronic gout, vertebrae
M1A.18X0 …… without tophus (tophi)
M1A.18X1 …… with tophus (tophi)
M1A.19 Lead-induced chronic gout, multiple sites
M1A.19X0 …… without tophus (tophi)
M1A.19X1 …… with tophus (tophi)
M1A.2 Drug-induced chronic gout
M1A.20 Drug-induced chronic gout, unspecified site
M1A.20X0 …… without tophus (tophi)
M1A.20X1 …… with tophus (tophi)
M1A.21 Drug-induced chronic gout, shoulder
M1A.211 Drug-induced chronic gout, right shoulder
M1A.2110 …… without tophus (tophi)
M1A.2111 …… with tophus (tophi)
M1A.212 Drug-induced chronic gout, left shoulder
M1A.2120 …… without tophus (tophi)
M1A.2121 …… with tophus (tophi)

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