Martinez v. Pacific Coast Construction
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Providers
3 of record
Dr. Angela Martinez
Primary Treating Physician · Orthopedics
PTP
WPI
22%
MMI Jan 15
Dr. James Wu
Qualified Medical Evaluator · Orthopedics
QME
WPI
45%
MMI Mar 8
Dr. Patricia Singh
Agreed Medical Evaluator · Pain Management
AME
WPI
35%
MMI Apr 2
Restrictions (current)
·Sedentary work only
·No lifting > 10 lbs
·No prolonged standing or walking
·No repetitive bending or twisting
Provider Opinion Matrix
All providers of record · AI-extracted from source reports
| Treating | Evaluating | ||
|---|---|---|---|
|
Dr. Angela Martinez
PTP · Orthopedics
|
Dr. James Wu
QME · Orthopedics
|
Dr. Patricia Singh
AME · Pain Management
|
|
| Report Date | Nov 14, 2023 | Mar 8, 2024 | Apr 2, 2024 |
| MMI Date | Jan 15, 2024 | Mar 8, 2024 | Apr 2, 2024 |
| WPI Rating | 22% | 45% | 35% |
| DRE Category | Lumbar Category II | Lumbar Category IV | Lumbar Category III |
| Disability Status | TD — Temporary | P&S — Permanent 45% | P&S — Permanent 35% |
| Future Medical | Ongoing conservative care | Yes — surgery + pain mgmt | Yes — conservative, surgical if fails |
| Causation | 100% industrial | 100% industrial | 85% industrial |
| Apportionment | None | None | 15% pre-existing |
| Work Status | Sedentary only | Sedentary only | Modified duty |
| Surgery Rec. | Not recommended | L4–L5 ACDF | Conservative care first |
AI Analysis
Under CA Labor Code §4628(b), the AME's opinion (Dr. Singh, 35% WPI) is generally controlling where parties agreed to an AME panel. The 23-point spread between PTP (22%) and QME (45%) opinions elevates dispute risk significantly. Dr. Singh's 15% apportionment to pre-existing condition will reduce the final PD award. Confirm AME agreement status before proceeding to MSC.
Dr. Wu QME 3/8/24
Dr. Singh AME 4/2/24
CA LC §4628(b)
Confirmed Diagnoses
ICD-10 codes extracted from provider reports
M51.16
L4–L5 Intervertebral Disc Degeneration with Radiculopathy
MRI 2/12/24
QME 3/8/24
M54.5
Lumbar Strain / Chronic Low Back Pain
PTP 11/14/23
S80.01XA
Right Knee Contusion
PTP 8/14/23
AI Analysis
The L4–L5 disc herniation (M51.16) is the primary compensable injury and the basis for the permanent disability dispute. The right knee contusion resolved without permanent impairment. No additional diagnoses were raised by any provider. The QME's DRE Lumbar Category IV classification (vs. PTP's Category II) is the root cause of the WPI conflict.
Dr. A. Martinez PTP 11/14/23
Dr. Wu QME 3/8/24
Treatment History
Chronological record · Mar 2023 – present
Mar 25, 2023
Initial evaluation — Dr. Angela Martinez, PTP
Orthopedic examination, diagnosis of lumbar strain and right knee contusion. Work status: TTD.
Mar 25 –
Aug 14, 2023
Aug 14, 2023
Physical therapy — 47 sessions
2× per week at Pacific Coast PT. Hot/cold, therapeutic exercise, manual therapy. Limited functional improvement noted at 6-month reassessment.
May 12, 2023
Epidural steroid injection — L4–L5
Fluoroscopic-guided injection at Pacific Interventional Pain. Temporary relief reported for 3–4 weeks.
Jul 21, 2023
Second epidural steroid injection — L4–L5
Repeat injection with shorter duration of relief. Surgeon consultation ordered.
Aug 14, 2023
Right knee: full resolution
Knee contusion fully resolved, removed from active diagnosis list.
Oct 3, 2023
MRI lumbar spine — ordered
Ordered by Dr. Martinez due to inadequate response to conservative care. UR approved 10/12/23.
Nov 14, 2023
PTP Progress Report — Dr. Angela Martinez
Work status: TTD continuing. MMI opinion: Jan 15, 2024. WPI: 22% DRE Category II.
Feb 12, 2024
MRI completed — Pacific Imaging Group
L4–L5 disc herniation with moderate right foraminal stenosis and L5 nerve root compression confirmed.
Mar 8, 2024
QME evaluation — Dr. James Wu
Independent orthopedic evaluation. WPI: 45% DRE Category IV. Surgery recommendation: L4–L5 ACDF.
Apr 2, 2024
AME evaluation — Dr. Patricia Singh
Pain management evaluation. WPI: 35% DRE Category III. Apportionment: 15% pre-existing. Conservative treatment recommended before surgery.
6
UR Requests
4
Approved
2
Denied
1
Pending
2
IMR Filings
1
Denial Upheld
Utilization Review Log
Treatment requests and UR decisions · Oct 2023 – present
| Requested | Treatment | Requested By | UR Decision | Decision Date | Status |
|---|---|---|---|---|---|
| Oct 3, 2023 |
MRI Lumbar Spine w/ Contrast
L4–L5 · Pacific Imaging Group
|
Dr. A. Martinez (PTP) | Approved | Oct 12, 2023 | Complete |
| Dec 1, 2023 |
Pain Management Consultation
Initial eval · Pacific Interventional Pain
|
Dr. A. Martinez (PTP) | Approved | Dec 8, 2023 | Complete |
| Jan 15, 2024 |
Repeat MRI Lumbar Spine
Follow-up post-injection · Pacific Imaging Group
|
Dr. P. Singh (AME) | Approved | Jan 22, 2024 | Complete |
| Apr 10, 2024 |
L4–L5 Lumbar Fusion Surgery (ACDF)
Per QME rec. · Pacific Spine Surgery Center
|
Dr. J. Wu (QME) | Denied | Apr 22, 2024 | IMR Filed |
| Jun 5, 2024 |
Spinal Cord Stimulator Trial
6-week trial · Pacific Interventional Pain
|
Dr. P. Singh (AME) | Denied | Jun 14, 2024 | IMR Filed |
| Jun 20, 2024 |
Physical Therapy — Continuation
12 additional sessions · Pacific Coast PT
|
Dr. A. Martinez (PTP) | Approved | Jun 26, 2024 | In Progress |
Independent Medical Review (IMR)
DWC IMR filings, determinations, and appeal deadlines
IMR #1 — L4–L5 Lumbar Fusion Surgery
Filed Apr 30, 2024 · DWC IMR Organization · Case #IMR-2024-04721
UR Denial
Apr 22, 2024 — Not medically necessary per MTUS guidelines; conservative care not exhausted prior to surgical intervention.
IMR Filed
Apr 30, 2024 — Filed by applicant's counsel. QME report (Dr. Wu, 3/8/24) submitted as primary supporting documentation.
Determination
Jun 18, 2024 — Denial upheld. IMR found insufficient evidence of conservative treatment failure to support surgical intervention per MTUS §§9792.20–9792.26. Conservative care (ESI, PT) must be further exhausted.
Next Steps
WCAB appeal deadline: Jul 18, 2024 (30 days from determination). Consider additional ESI or extended PT documentation before re-submission.
IMR Det. 6/18/24
MTUS §9792.20
Dr. Wu QME 3/8/24
CA LC §4610.5
IMR #2 — Spinal Cord Stimulator Trial
Filed Jun 25, 2024 · DWC IMR Organization · Case #IMR-2024-06892
UR Denial
Jun 14, 2024 — Treatment not supported under current MTUS guidelines for lumbar disc herniation without documented failure of prior interventions meeting MTUS thresholds.
IMR Filed
Jun 25, 2024 — Filed by applicant's counsel. AME Dr. Singh's Apr 2, 2024 report submitted as primary support; Pain Management consultation notes attached.
IMR Status
Pending — Standard 30-business-day review. Expected determination: Aug 7, 2024. No interim ruling issued.
UR Denial 6/14/24
Dr. Singh AME 4/2/24
MTUS §9792.20
AI Analysis
The IMR denial of L4–L5 fusion (IMR #1, Jun 18) is grounded in MTUS §9792.20 — conservative care exhaustion is the threshold and the record shows only two ESIs and 47 PT sessions. The most defensible path to surgical approval is documented failure of a third ESI plus extended PT with objective functional measures. For IMR #2 (SCS trial), AME Dr. Singh's support is favorable but SCS carries a high evidentiary bar under current MTUS; outcome is uncertain. Action required: WCAB appeal deadline for IMR #1 is Jul 18, 2024 — confirm with supervising attorney whether to appeal or continue conservative care pathway.
IMR Det. 6/18/24
MTUS §9792.20
CA LC §4610.5
Dr. Singh AME 4/2/24