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CASE-1004

Meridian Commercial PPO · MRI lumbar spine without contrast (CPT 72148)

standard · 7d Nurse review medium confidence

Engine recommendation

medium confidence

Does not meet criteria

One or more required criteria are not met in the submitted chart.

✓ 1 met ✕ 5 not met 📎 6/6 grounded

Recommended next step Escalate to a Medical Director — only an MD can deny.

Why (full reasoning)

This request does not currently meet medical-necessity criteria. The patient has only 6 days of mild, improving, non-radicular low back pain, failing the duration requirement [C4], and has not undergone any conservative therapy trial [C1], with no evidence of persistent or worsening symptoms [C2]. A focused neurological exam was performed and is entirely normal [C3], and no red-flag conditions such as cauda equina syndrome, progressive motor deficit, malignancy, or trauma are present [C5], so the conservative-therapy and duration requirements are not waived. The ordering provider explicitly notes that imaging is not expected to alter management [C6], and the request appears driven by patient reassurance rather than clinical indication. Based on the chart as documented, this does not meet the payer's medical-necessity criteria for MRI lumbar spine without contrast; a course of conservative management with reassessment is recommended before imaging is considered.

Criteria checklist

Each medical-policy requirement, the engine's call, and the exact chart text it relied on.

✕ not met Conservative therapy trial

Cited evidence None attempted. Patient has not tried physical therapy, NSAIDs, or activity modification.

No conservative management has been trialed and no red flag waives this requirement.

✕ not met Persistent or progressive symptoms despite conservative trial

Cited evidence Pain is improving day over day.

Symptoms are improving rather than persisting or worsening, and no conservative trial occurred.

✓ met Neurological exam documented 📎 grounded

Cited evidence Motor: 5/5 throughout both lower extremities. Sensory: intact and symmetric. Reflexes: 2+ and symmetric.

A focused neurological exam is documented, though it is normal and does not support a radicular process.

✕ not met Symptom duration ≥ 6 weeks

Cited evidence 33-year-old with 6 days of mild, non-radiating low back pain

Symptoms have lasted only 6 days, well short of the 6-week threshold, and no red flag waives this.

✕ not met Red flag present

Cited evidence No trauma, no history of cancer, no fever, no unexplained weight loss, no IV drug use.

No red-flag findings (cauda equina, progressive deficit, infection/malignancy, trauma) are documented.

✕ not met Impact on management

Cited evidence Imaging is not expected to change management; conservative care is indicated.

The treating provider explicitly states imaging will not change management.

Source chart the full submitted documentation — click to collapse

📄 PDF document

# Patient Chart — SYNTHETIC (fictional)
Patient: T. Nguyen (fictional) · Age 33 · MRN SYN-0004
Requested service: MRI lumbar spine without contrast (CPT 72148)

## History of Present Illness
33-year-old with 6 days of mild, non-radiating low back pain after a weekend of gardening.
No leg pain, no numbness, no weakness. Pain is improving day over day. Patient requests an MRI
"to be sure nothing is seriously wrong" and for reassurance before an upcoming vacation.

## Conservative treatment to date
- None attempted. Patient has not tried physical therapy, NSAIDs, or activity modification.

## Neurological exam
- Motor: 5/5 throughout both lower extremities.
- Sensory: intact and symmetric.
- Reflexes: 2+ and symmetric.
- No saddle anesthesia; no bowel/bladder dysfunction.

## Red-flag screen
- No trauma, no history of cancer, no fever, no unexplained weight loss, no IV drug use.

## Assessment / Plan
Acute, improving, non-specific mechanical low back pain in a young adult with a normal
neurological exam and no red flags. Imaging is not expected to change management; conservative
care is indicated. Patient nonetheless requests MRI.

⚠ Missing documentation

Documentation of at least 6 weeks of provider-directed conservative therapy (PT, NSAIDs, activity modification) or a clinical reason it is inappropriate
Evidence of persistent or progressive symptoms despite conservative management
Symptom duration of ≥6 weeks, or documentation of a qualifying red flag
Neurological findings supporting a radicular or neurological process
Clinical rationale for how MRI results would change management

These are what a provider could send to close the gap (a "Request Info" case, not a denial).

Audit trail

No human actions yet.

SLA remaining

…

due 2026-07-21 23:08 UTC

Case facts

Member: T. Nguyen (SYNTHETIC)
DOB: 1970-01-01
CPT: 72148
Diagnosis: Non-specific low back pain
ICD-10: M54.5
Received: 2026-07-14 23:08

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Review & decide

Acting as coordinator. This role reviews only — switch to nurse or md to decide (you can still leave notes).

🔒 Synthetic data only — not for clinical use.