M18.9

Billable
ChapterM00–M99
Ranksubcategory
Official Description

Osteoarthritis of first carpometacarpal joint, unspecified

Metadata & Insights
  • Billable/specific code (valid for reimbursement).
  • Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).
General instructions are available for the parent sections:

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M15-M19Osteoarthritis (M15-M19)
M18Osteoarthritis of first carpometacarpal joint
M18.9Osteoarthritis of first carpometacarpal joint, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M18.9:

blockM15-M19
Osteoarthritis (M15-M19)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

Cross Reference

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