Fibromyalgia Diagnostic Criteria

FIBROMYALGIA DIAGNOSTIC CRITERIA

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1. Widespread pain index (WPI) and symptom severity score (SSS)

WPI ≥ 7 and SSS ≥ 5 OR WPI 4-6 and SSS ≥ 9

2. Generalised pain: pain in 4/5 regions

3. Symptoms present ≥ 3 months

The fibromyalgia diagnosis can now be made irrespective of other diagnoses (you do not need to rule out all other conditions that could explain the symptoms, if criteria 1-3 are all met).

1. Widespread pain index (WPI)

In the past week, where have you had pain? (check all that apply)

Left lower region (3)

L hip (buttock/trochanter)L upper leg L lower leg

Right lower region (4)

R hip (buttock/ trochanter)R upper leg R lower leg

Total: WPI score (add up boxes checked, 0-19)

Number of regions checked (excluding items with *); use this for criterion #2

Symtpoms Severity Score (SSS)

For each of the following, for the past week, rate

In the past week, have you been bothered by any of the following?

Total SSS: (0-12)

Summary:

1. Criterion 1 is met if you have EITHER

WPI ≥ 7 and SSS ≥ 5 OR
WPI 4-6 and SSS ≥ 9

2. Generalised pain: met if you checked pain in 4/5 regions (not including items with *)

3. Symptoms present ≥ 3 months

Fibromyalgia is diagnosed if yu meet all 3 criteria 1-3, independent of whether other diagnoses contribute to these symptoms. This is new: FMS diagnosis used to require that there be no other diagnosis to explain the findings.