M33.20
BillablePolymyositis, organ involvement unspecified
Polymyositis, organ involvement unspecified
Coding Notes
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
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Related Codes(3)
Also Known As / Clinical Terms(33)
SNOMED CT
- Neuromyositis31384009
- PM - Polymyositis31384009
- Polymyositis31384009
- Polymyositis with malignant disease239898008
- Polymyositis associated with autoimmune disease239899000
- Eosinophilic polymyositis240120003
- Overlap syndrome276657008
- Idiopathic polymyositis281357005
- Connective tissue disease overlap syndrome398021003
- Antisynthetase syndrome445187004
- Idiopathic inflammatory myopathy702380008
- Idiopathic inflammatory myositis702380008
- Juvenile polymyositis738526005
- Polymyositis overlap syndrome1144944001
- Anti-synthetase syndrome due to polymyositis1144974009
- Antisynthetase syndrome due to polymyositis1144974009
Clinical Terms
- Idiopathic inflammatory myositis
- Connective tissue disease overlap syndrome
- Overlap syndrome
- Antisynthetase syndrome
- Polymyositis with malignant disease
- Juvenile polymyositis
- Polymyositis overlap syndrome
- Anti-synthetase syndrome due to polymyositis
- Polymyositis
- Eosinophilic polymyositis
- Idiopathic polymyositis
- PM - Polymyositis
- Idiopathic inflammatory myopathy
- Antisynthetase syndrome due to polymyositis
- Polymyositis associated with autoimmune disease
- Neuromyositis
Frequently Asked Questions
What is the ICD-10 code for polymyositis, organ involvement unspecified?
The ICD-10-CM code for polymyositis, organ involvement unspecified is M33.20. The full clinical description is "Polymyositis, organ involvement unspecified". M33.20 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M33.20 mean?
ICD-10-CM code M33.20 represents “Polymyositis, organ involvement unspecified”. 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 M33.20 a billable code?
Yes, M33.20 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M33.20 in?
M33.20 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M33.20?
M33.20 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.
What SNOMED CT codes does M33.20 map to?
M33.20 maps to 12 SNOMED CT concepts: 1144974009, 445187004, 398021003, 240120003, 702380008, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M33.20?
M33.20 is linked to 1 UMLS Concept Unique Identifier: C2895187. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M33.20 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like polymyositis, organ involvement unspecified affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M33.20?
There is no direct ICD-11 mapping available for M33.20 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.