Fibromyalgia management guide

Think of fibromyalgia when there is widespread pain for 3 months or more, together with fatigue, unrefreshing sleep or cognitive symptoms. Headache, irritable bowel and mood symptoms often travel with it.

In a patient who already has the diagnosis, a new or changing symptom still deserves its own work-up. Don't attribute it to fibromyalgia automatically.

• Diffuse body pain for at least 3 months (rec 1)
• Fatigue, sleep, cognitive or mood symptoms, to a variable degree (rec 1)
• Physical exam within normal limits apart from soft-tissue tenderness (hyperalgesia) on manual palpation; no tender-point count needed (recs 2–3)
• Simple blood tests done and unremarkable (CBC, ESR, CRP, CK, TSH) (rec 4)
• Symptoms not explained by another illness (rec 1)

Optional, rec 6: the ACR criteria “can be used at initial assessment to validate a clinical diagnosis” (level 3, grade B). The guideline cites the 2010 criteria; the worksheet uses the 2016 revision. Open ACR worksheet

Expect the exam to be normal apart from soft-tissue tenderness on manual palpation. A formal tender-point count is not needed (Canadian 2012, recs 2–3).

These point elsewhere and need their own work-up:

• Joints that are visibly swollen, hot, or stiff for more than an hour every morning: points towards inflammatory arthritis, not fibromyalgia
• New weakness, numbness in a clear pattern, or loss of bladder or bowel control: needs its own neurological work-up
• Fever, night sweats, or losing weight without trying: needs its own work-up

Canadian 2012: CBC, ESR, CRP, CK, TSH. No confirmatory test. Any further laboratory or imaging work-up should follow the clinical evaluation of the individual patient. Avoid repeat investigation after diagnosis unless new symptoms or signs appear. (Canadian 2012, recs 4–5)

AHC approach: the focused rule-out panel in “Should I be tested?” below (approved record, reviewed 2026-10-07). Normal results are the expected finding and do not argue against the diagnosis.

Diagnose when the symptoms “cannot be explained by some other illness.” Be aware that other conditions can present like FM, and that patients with other medical illnesses may also have FM. (Canadian 2012, recs 1 and 7)

Give the diagnosis clearly once it is made. A named diagnosis can reduce testing, referrals and visits. Avoid repeat investigation unless new symptoms or signs appear (Canadian 2012, rec 5).

“There's no blood test that confirms fibromyalgia — a normal result is actually the expected finding, not a sign we've missed something. We'll still run a small panel to rule out things that can look similar, like thyroid problems or anemia. If you have swollen or hot joints, that points away from fibromyalgia, and we'd look into that specifically instead.”

Point them to the patient page, written for exactly this conversation.

Tick what you covered. Each item adds its line to the chart note below.

• Discussed pacing message
• Confirmed diagnosis is real, no single test confirms it
• Reviewed rule-out lab panel
• Regular movement, patient-paced
• Addressed sleep
• Mood screened, support offered
• Flare plan made
• Introduced daily check-in tool
• Reviewed return precautions
• K037 time recorded

  K037 is time-based, billed per half-hour unit or major part thereof: 1 unit needs 20 minutes direct patient contact, 2 units 46 minutes, 3 units 76 minutes. Time must be consecutive, direct patient contact, and excludes chart review or other non-patient-facing time. Start and stop times must be recorded in the patient's permanent record or the service is not payable. No other consultation, assessment, visit, or time-based service is payable the same day, same patient, same physician. (Ontario Schedule of Benefits Physician Services effective 2026-07-01, A50; GP7(g); GP55)

Fibromyalgia assessment per 2012 Canadian Guidelines (Fitzcharles et al, CPS/CRA).
Clinical criteria (recs 1-4): 0/5 documented.
Outstanding: Diffuse body pain for at least 3 months; Fatigue, sleep, cognitive or mood symptoms, to a variable degree; Physical exam within normal limits apart from soft-tissue tenderness (hyperalgesia) on manual palpation; no tender-point count needed; Simple blood tests done and unremarkable (CBC, ESR, CRP, CK, TSH); Symptoms not explained by another illness.
Assessment: criteria not yet fully documented.
Red flags (joint swelling, new neurological signs, fever, weight loss) to be documented separately.
Patient given info page: https://fibromyalgia.ajaxharwoodclinic.com/patient