All ICD10 Codes

M25.66

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Stiffness of knee, not elsewhere classified

Use a more specific code (3 billable)
M25.661Stiffness of right knee, not elsewhere classifiedM25.662Stiffness of left knee, not elsewhere classifiedM25.669Stiffness of unspecified knee, not elsewhere classified
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 M20-M25 NotesView M25 NotesView M25.6 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
M25.6Stiffness of joint, not elsewhere classified
M25.66Stiffness of knee, not elsewhere classifiedNot billable
M25.661Stiffness of right knee, not elsewhere classifiedBillable
M25.662Stiffness of left knee, not elsewhere classifiedBillable
M25.669Stiffness of unspecified knee, not elsewhere classifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M25.66:

subcategoryM25.6
Stiffness of joint, not elsewhere classified
View context instructions
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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