ICD-10 Guide

M18.1

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Non-billable

Unilateral primary osteoarthritis of first carpometacarpal joint

BILLABLE STATUSNo

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 M18.1 is a used to indicate a diagnosis of unilateral primary osteoarthritis of first carpometacarpal joint.

Key Diagnostic Point:

Unilateral primary osteoarthritis of first carpometacarpal joint

M18.1

Code Description

Key Diagnostic Point:

Related ICD-10 Codes

M18.1

Code Description

Key Diagnostic Point:

Related ICD-10 Codes