M18.12

Billable
ChapterM00–M99
Ranksubcategory
Official Description

Unilateral primary osteoarthritis of first carpometacarpal joint, left hand

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
M18.1Unilateral primary osteoarthritis of first carpometacarpal joint
M18.12Unilateral primary osteoarthritis of first carpometacarpal joint, left handBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M18.12:

subcategoryM18.1
Unilateral primary osteoarthritis of first carpometacarpal joint
View context instructions
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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