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ACR Criteria

ACR/EULAR 2010 Criteria: The classification criteria for Rheumatoid Arthritis. A score of ≥ 6 is diagnostic of definite RA.

Joint Involvement

Serology (RF or CCP)

Duration

Acute Phase (ESR/CRP)

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Classification of adult patients with suspected Rheumatoid Arthritis (RA).

Evaluating patients with at least one joint with definite clinical synovitis (swelling).

Standardizing clinical trial enrollment and early DMARD initiation.

Prerequisites

The criteria should only be applied if synovitis is not better explained by another disease (e.g., SLE, Psoriatic Arthritis, Gout, CPPD). If the patient has typical erosions on X-ray, RA can be diagnosed without further scoring.

Last Comprehensive Review: 2026

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Recent Journal Updates

CancerJun 5, 2026

Executive summary of American Radium Society Appropriate Use Criteria for the treatment of locoregionally recurrent rectal cancer

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).

DiabetologiaMay 26, 2026

Clinical and psychological phenotypes of type 1 diabetes and disordered eating derived from a case vignette series: T1DE phenotypes

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).

WHO NewsMay 22, 2026

First meeting of the IHR Emergency Committee regarding the epidemic of Ebola Bundibugyo virus disease in the Democratic Republic of the Congo and Uganda 2026 – Temporary recommendations

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).

ACR Criteria

ACR/EULAR 2010 Criteria: The classification criteria for Rheumatoid Arthritis. A score of ≥ 6 is diagnostic of definite RA.

Joint Involvement

Serology (RF or CCP)

Duration

Acute Phase (ESR/CRP)

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

Classification of adult patients with suspected Rheumatoid Arthritis (RA).

Evaluating patients with at least one joint with definite clinical synovitis (swelling).

Standardizing clinical trial enrollment and early DMARD initiation.

Prerequisites

Last Comprehensive Review: 2026

Related Internal Medicine Tools

Internal Medicine Calculators Cardiology Calculators Pulmonary Calculators

Have feedback about this calculator?Let us know.

Recent Journal Updates

CancerJun 5, 2026

Executive summary of American Radium Society Appropriate Use Criteria for the treatment of locoregionally recurrent rectal cancer

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).

DiabetologiaMay 26, 2026

Clinical and psychological phenotypes of type 1 diabetes and disordered eating derived from a case vignette series: T1DE phenotypes

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).

WHO NewsMay 22, 2026

First meeting of the IHR Emergency Committee regarding the epidemic of Ebola Bundibugyo virus disease in the Democratic Republic of the Congo and Uganda 2026 – Temporary recommendations

Clinical Context

We think this might be relevant to the clinical guidance for ACR/EULAR Rheumatoid Arthritis Criteria (2010).