All ICD10 Codes

M25.4

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Effusion of joint

Use a more specific code (2 billable, 7 non-billable)
M25.40Effusion, unspecified jointM25.41Effusion, shoulderhas subcodesM25.42Effusion, elbowhas subcodesM25.43Effusion, wristhas subcodesM25.44Effusion, handhas subcodesM25.45Effusion, hiphas subcodesM25.46Effusion, kneehas subcodesM25.47Effusion, ankle and foothas subcodesM25.48Effusion, other site
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • hydrarthrosis in yaws (A66.6)
  • intermittent hydrarthrosis (M12.4-)
  • other infective (teno)synovitis (M65.1-)
General instructions are available for the parent sections:
View CH13 NotesView M20-M25 NotesView M25 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25Other joint disorders (M20-M25)
M25Other joint disorder, not elsewhere classified
M25.4Effusion of jointNot billable
M25.40Effusion, unspecified jointBillable
M25.41Effusion, shoulderSubcodes
M25.42Effusion, elbowSubcodes
M25.43Effusion, wristSubcodes
M25.44Effusion, handSubcodes
M25.45Effusion, hipSubcodes
M25.46Effusion, kneeSubcodes
M25.47Effusion, ankle and footSubcodes
M25.48Effusion, other siteBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M25.4:

categoryM25
Other joint disorder, not elsewhere classified
View context instructions
blockM20-M25
Other joint disorders (M20-M25)
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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