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ICD-10-CM Code M33.22
Polymyositis with myopathy

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

M33.22 is a billable ICD code used to specify a diagnosis of polymyositis with myopathy. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code M332 is used to code Polymyositis

Polymyositis (PM)("inflammation of many muscles") is a type of chronic inflammation of the muscles (inflammatory myopathy) related to dermatomyositis and inclusion body myositis.

Specialty: Rheumatology
MeSH Code: D017285
ICD 9 Code: 710.4

Micrograph of polymyositis. Muscle biopsy. H&E stain.

Source: Wikipedia

MS-DRG Mapping

  • DRG Group #545-547 - Connective tissue disorders with MCC.
  • DRG Group #545-547 - Connective tissue disorders with CC.
  • DRG Group #545-547 - Connective tissue disorders without CC or MCC.

Related Concepts SNOMET-CT

  • Acute sarcoid polymyositis (disorder)

ICD-10-CM Alphabetical Index References for 'M33.22 - Polymyositis with myopathy'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code M33.22. Click on any term below to browse the alphabetical index.


Symptomatic inflammatory myopathy in diseases classified elsewhere (approximate match)
Polymyositis (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code M33.22 and a single ICD9 code, 710.4 is an approximate match for comparison and conversion purposes.

Parent Code: M33.2 - Polymyositis

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/M3322