All ICD10 Codes

M33.9

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Dermatopolymyositis, unspecified

Use a more specific code (5 billable)
M33.90Dermatopolymyositis, unspecified, organ involvement unspecifiedM33.91Dermatopolymyositis, unspecified with respiratory involvementM33.92Dermatopolymyositis, unspecified with myopathyM33.93Dermatopolymyositis, unspecified without myopathyM33.99Dermatopolymyositis, unspecified with other organ involvement
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).
General instructions are available for the parent sections:
View CH13 NotesView M30-M36 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M30-M36Systemic connective tissue disorders (M30-M36)
M33Dermatopolymyositis
M33.9Dermatopolymyositis, unspecifiedNot billable
M33.90Dermatopolymyositis, unspecified, organ involvement unspecifiedBillable
M33.91Dermatopolymyositis, unspecified with respiratory involvementBillable
M33.92Dermatopolymyositis, unspecified with myopathyBillable
M33.93Dermatopolymyositis, unspecified without myopathyBillable
M33.99Dermatopolymyositis, unspecified with other organ involvementBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M33.9:

blockM30-M36
Systemic connective tissue disorders (M30-M36)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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