Kodex

Code

M35.81

Multisystem inflammatory syndrome

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Hierarchy

M00-M99 Diseases of the musculoskeletal system and connective tissue (M00-M99)
- M30-M36 Systemic connective tissue disorders (M30-M36)
  - M35 Other systemic involvement of connective tissue
    - M35.8 Other specified systemic involvement of connective tissue
      - M35.81 Multisystem inflammatory syndrome
      - M35.89 Other specified systemic involvement of connective tissue

Notes

Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Inclusion Terms

M35.81

MIS-A
MIS-C
Multisystem inflammatory syndrome in adults
Multisystem inflammatory syndrome in children
Pediatric inflammatory multisystem syndrome
PIMS

Code First

M35.81

, if applicable, COVID-19 (U07.1)
- U07.1 COVID-19

Code Also

M35.81

any associated complications such as:
acute hepatic failure (K72.0-)
- K72.0 Acute and subacute hepatic failure
N17 Acute kidney failure
I40 Acute myocarditis
J80 Acute respiratory distress syndrome
cardiac arrhythmia (I47-I49.-)
pneumonia due to COVID-19 (J12.82)
- J12.82 Pneumonia due to coronavirus disease 2019
R65.2 Severe sepsis
B33.24 Viral cardiomyopathy
B33.23 Viral pericarditis

Use Additional

M35.81

code, if applicable, for:
exposure to COVID-19 or SARS-CoV-2 infection (Z20.822)
- Z20.822 Contact with and (suspected) exposure to COVID-19
Z86.16 Personal history of COVID-19
post COVID-19 condition (U09.9)
- U09.9 Post COVID-19 condition, unspecified

Includes

autoimmune disease NOS
collagen (vascular) disease NOS
systemic autoimmune disease
systemic collagen (vascular) disease

Excludes 1

L87.1 Reactive perforating collagenosis

autoimmune disease, single organ or single cell-type -code to relevant condition category

Excludes 2

L40.5 Arthropathic psoriasis
certain conditions originating in the perinatal period (P04-P96)
A00-B99 Certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
- T79.A Traumatic compartment syndrome
complications of pregnancy, childbirth and the puerperium (O00-O9A)
- O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
C00-D49 Neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)