AutoICD API

M35.81

Billable

Multisystem inflammatory syndrome

Multisystem inflammatory syndrome

Status

Billable / Specific

Block

M30-M36

Parent Code

M35.8

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

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

Includes

Conditions included under this code

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

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • autoimmune disease, single organ or single cell-type -code to relevant condition category
  • reactive perforating collagenosis (L87.1)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)

Code First

The underlying condition must be sequenced before this code

  • , if applicable, COVID-19 (U07.1)

Use Additional Code

Additional codes that should follow this code

  • code, if applicable, for:
  • exposure to COVID-19 or SARS-CoV-2 infection (Z20.822)
  • personal history of COVID-19 (Z86.16)
  • post COVID-19 condition (U09.9)

Code Also

A second code may be required; sequencing depends on circumstances

  • any associated complications such as:
  • acute hepatic failure (K72.0-)
  • acute kidney failure (N17.-)
  • acute myocarditis (I40.-)
  • acute respiratory distress syndrome (J80)
  • cardiac arrhythmia (I47-I49.-)
  • pneumonia due to COVID-19 (J12.82)
  • severe sepsis (R65.2-)
  • viral cardiomyopathy (B33.24)
  • viral pericarditis (B33.23)

Also Known As / Clinical Terms

SNOMED CT

UMLS

Frequently Asked Questions

What is the ICD-10 code for multisystem inflammatory syndrome?

The ICD-10-CM code for multisystem inflammatory syndrome is M35.81. The full clinical description is "Multisystem inflammatory syndrome". M35.81 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code M35.81 mean?

ICD-10-CM code M35.81 represents "Multisystem inflammatory syndrome". It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.

Is M35.81 a billable code?

Yes, M35.81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is M35.81 in?

M35.81 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).

What codes cannot be used with M35.81?

M35.81 has Excludes1 notes indicating codes that cannot be used together with it, including: autoimmune disease, single organ or single cell-type -code to relevant condition category; reactive perforating collagenosis (L87.1).

Are additional codes required with M35.81?

Yes, when using M35.81 you should also code: code, if applicable, for:; exposure to COVID-19 or SARS-CoV-2 infection (Z20.822); personal history of COVID-19 (Z86.16); post COVID-19 condition (U09.9).

What SNOMED CT codes does M35.81 map to?

M35.81 maps to 3 SNOMED CT concepts: 1119306006, 895448002, 238149007. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for M35.81?

M35.81 is linked to 3 UMLS Concept Unique Identifiers: C5389369, C5439527, C5539184. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.