All ICD10 Codes

M23.31

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Other meniscus derangements, anterior horn of medial meniscus

Use a more specific code (3 billable)
M23.311Other meniscus derangements, anterior horn of medial meniscus, right kneeM23.312Other meniscus derangements, anterior horn of medial meniscus, left kneeM23.319Other meniscus derangements, anterior horn of medial meniscus, unspecified knee
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 M23 NotesView M23.3 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M20-M25Other joint disorders (M20-M25)
M23Internal derangement of knee
M23.3Other meniscus derangements
M23.31Other meniscus derangements, anterior horn of medial meniscusNot billable
M23.311Other meniscus derangements, anterior horn of medial meniscus, right kneeBillable
M23.312Other meniscus derangements, anterior horn of medial meniscus, left kneeBillable
M23.319Other meniscus derangements, anterior horn of medial meniscus, unspecified kneeBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M23.31:

subcategoryM23.3
Other meniscus derangements
View context instructions
categoryM23
Internal derangement of knee
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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