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Prior Authorization — Total Hip Replacement · Anthem BCBS · FL
PRISM® ANALYSIS REPORT · PA VARIANT · SAMPLE OUTPUT · March 2026
SITUATION SUMMARY
A prior authorization request for total hip arthroplasty (THA) was submitted to Anthem BCBS for a 64-year-old patient with end-stage osteoarthritis of the right hip (ICD-10: M16.11), severe functional limitation, and documented failure of 6 months of conservative management including physical therapy, NSAIDs, and corticosteroid injections. Anthem's criteria engine requires documented conservative treatment failure across multiple modalities before approving surgical intervention. The most likely denial risk is insufficient documentation of conservative treatment failure — specifically, the absence of a formal physical therapy discharge summary and the lack of documented functional scoring (e.g., Harris Hip Score or WOMAC). This package maps the clinical justification to each of Anthem's criteria and identifies the documentation gaps that must be closed before submission.
SAMPLE LETTER — LETTER OF MEDICAL NECESSITY
DRAFT — Complete all [REQUIRED] fields. Confirm with treating provider before submission.
[PRACTICE LETTERHEAD] [DATE] To: Anthem BCBS Prior Authorization Department Re: Prior Authorization Request — Total Hip Arthroplasty (THA), Right Hip CPT: 27130 Patient: [REQUIRED: Patient full name] Date of Birth: [REQUIRED] Member ID: [REQUIRED: Anthem member ID] Group Number: [REQUIRED] Dear Prior Authorization Medical Director, I am writing to request prior authorization for total hip arthroplasty (CPT 27130) for a 64-year-old patient with end-stage osteoarthritis of the right hip (ICD-10: M16.11). This procedure is medically necessary. The patient has completed a full course of conservative management across multiple modalities over 6 months without meaningful clinical improvement, and currently presents with severe functional limitation that is not compatible with activities of daily living. DIAGNOSIS AND CLINICAL PRESENTATION Primary Diagnosis: Right hip osteoarthritis, primary, end-stage (M16.11) Current functional status: Harris Hip Score [REQUIRED: insert score — typically ≤47 for surgical candidacy] — severe functional limitation Pain level: [REQUIRED: VAS or NRS score, e.g., 8/10 at rest, 10/10 with ambulation] Ambulation: Limited to [REQUIRED: distance, e.g., less than one block] with assistive device Weight-bearing status: Painful weight-bearing; unable to climb stairs or perform routine ADLs without significant pain Imaging: [REQUIRED: X-ray or MRI date] demonstrating severe joint space narrowing, subchondral sclerosis, and osteophyte formation consistent with end-stage osteoarthritis CONSERVATIVE TREATMENT FAILURE — DOCUMENTED ACROSS ALL REQUIRED MODALITIES 1. Physical Therapy ▸ Duration: [REQUIRED: e.g., 8 weeks, 2× per week] ▸ Facility: [REQUIRED: PT facility name] ▸ Outcome: Failed to achieve functional improvement. Persistent pain and limited range of motion at discharge. [REQUIRED: attach PT discharge summary] 2. NSAID / Anti-inflammatory Pharmacotherapy ▸ Agent(s): [REQUIRED: e.g., Meloxicam 15mg daily, Naproxen 500mg BID] ▸ Duration: [REQUIRED: e.g., 3 months] ▸ Outcome: Inadequate pain control; [REQUIRED: specify GI intolerance, inadequate efficacy, or contraindication if applicable] 3. Intra-articular Corticosteroid Injection ▸ Number of injections: [REQUIRED: e.g., 2 injections] ▸ Dates: [REQUIRED] ▸ Outcome: Temporary partial relief; pain returned to baseline within [REQUIRED: e.g., 4–6 weeks]. No sustained functional improvement. SURGICAL NECESSITY Total hip arthroplasty is the evidence-based, guideline-concordant treatment for end-stage hip osteoarthritis that has failed conservative management. Per the American Academy of Orthopaedic Surgeons (AAOS) Clinical Practice Guideline for osteoarthritis of the hip, surgical intervention is indicated when: (1) conservative treatment has been exhausted, (2) functional limitation significantly impacts quality of life and ADLs, and (3) imaging confirms structural disease severity. This patient meets all three criteria. Denial of this procedure will result in continued progressive joint destruction, increasing opioid analgesic requirements, and irreversible functional decline in a patient who meets all clinical criteria for surgical intervention. Sincerely, [REQUIRED: Surgeon full name, credentials, NPI, practice, signature]
RECOMMENDED DOCUMENTATION CHECKLIST
Physical therapy discharge summary with documented outcome failure
→ "Patient completed [X weeks] of physical therapy at [facility]. At discharge, patient continued to demonstrate [limited ROM, persistent pain at VAS X/10, inability to perform ADLs]. Physical therapy was deemed insufficient to restore functional mobility."
REQUIRED
Imaging report — X-ray or MRI confirming end-stage osteoarthritis
→ Report must document: severe joint space narrowing, subchondral sclerosis, osteophyte formation. Kellgren-Lawrence Grade 3 or 4 on X-ray is the standard surgical threshold. Include dated radiology report with reading radiologist's name.
REQUIRED
Functional outcome score — Harris Hip Score or WOMAC
→ Anthem's criteria typically require a documented functional score. Harris Hip Score ≤47 indicates severe dysfunction and supports surgical candidacy. Document in the office note closest to the PA submission date.
REQUIRED
Documentation of NSAID trial with duration and outcome
→ "Patient trialed [drug name, dose] for [duration]. Outcome: [inadequate pain control / GI intolerance / contraindication]. Current analgesic requirements: [specify]."
REQUIRED
Corticosteroid injection records with dates and outcome documentation
→ "Patient received [number] corticosteroid injection(s) on [dates]. Temporary partial relief only; pain returned to baseline within [timeframe]. No sustained functional improvement documented."
REQUIRED
Pre-operative medical clearance documentation
→ Anthem typically requires medical clearance from the patient's primary care physician or internist confirming the patient is medically fit for surgery. Include the clearance note with the PA submission.
RECOMMENDED
CRITERIA PRE-EMPTION MAP
CriterionDocumentation ProvidedStatus
Diagnosis of hip osteoarthritis confirmedICD-10 M16.11 — right hip OA, primary✓ MET
Imaging confirming structural disease severityX-ray/MRI required — date and report referenced⚠ PARTIAL — attach dated radiology report
Functional outcome score documentedHarris Hip Score or WOMAC required by Anthem✗ GAP — must be documented in office note
Physical therapy trial — 6+ weeks documentedPT course completed — discharge summary referenced⚠ PARTIAL — attach PT discharge summary
NSAID trial — documented with outcomeNSAID trial documented in clinical narrative✓ MET
Corticosteroid injection trial2 injections with dates and outcomes documented✓ MET
Surgeon specialty appropriateOrthopedic surgery — board certified✓ MET
Pre-operative medical clearanceNot yet submitted⚠ PARTIAL — obtain and attach before submission
Facility/ASC is in-network with Anthem[VERIFY — confirm surgical facility network status]⚠ VERIFY — confirm before scheduling
REGULATORY CITATIONS
AAOS Clinical Practice Guideline — Osteoarthritis of the Hip
The American Academy of Orthopaedic Surgeons supports total hip arthroplasty for patients with end-stage hip osteoarthritis who have failed conservative management. Surgical candidacy criteria include: confirmed structural disease on imaging, documented conservative treatment failure, and significant functional limitation impacting ADLs. This patient meets all three criteria.
Florida Statutes §627.6131 — PA Timeliness Requirements
Anthem BCBS is required to respond to routine prior authorization requests within specified business day limits under Florida insurance law. For urgent surgical requests, expedited review timelines apply. [VERIFY: confirm current Florida PA timeline requirements — Florida has amended these provisions; verify current statute at time of submission.]
ERISA Status Advisory
If this is a self-funded ERISA plan, Florida insurance statutes governing PA timelines may not be enforceable — federal ERISA claims procedures govern. Confirm plan funding type from the insurance card or HR department before citing state law in a formal appeal.
PA REQUEST SUMMARY
Service RequestedTotal Hip Arthroplasty (THA) — Right Hip
CPT Code27130 — Arthroplasty, acetabular and proximal femoral prosthetic replacement
Diagnosis (ICD-10)M16.11 — Primary osteoarthritis, right hip
PayerAnthem BCBS Florida
Requesting SpecialtyOrthopedic Surgery
Facility Type[REQUIRED: Hospital inpatient / Ambulatory Surgical Center — confirm with Anthem]
UrgencyRoutine (elective surgical procedure)
Anesthesia PA[VERIFY: confirm whether separate anesthesia PA is required under this Anthem plan]
Submitting Provider NPI[REQUIRED]
Patient Member ID[REQUIRED]
DECISION LOGIC IDENTIFIED
Anthem's prior authorization criteria for total hip arthroplasty follow a conservative treatment failure framework. The criteria engine evaluates documentation across four required modalities: imaging, functional scoring, physical therapy, and pharmacotherapy. All four must be documented — absence of any single element is sufficient grounds for denial. Anthem's THA criteria are structured to ensure surgical intervention is a last resort after conservative management. The criteria engine does not evaluate clinical judgment — it evaluates documentation. A clinically appropriate surgical candidate can be denied if the documentation package does not present each required element in the required format. The two highest-risk gaps in this submission are: (1) the absence of a formal functional outcome score (Harris Hip Score or WOMAC), which Anthem requires as objective evidence of functional limitation; and (2) the absence of a PT discharge summary confirming treatment failure. Both are obtainable and must be closed before submission.
MISSING INFORMATION OR CRITERIA
▸ Functional outcome score — Harris Hip Score or WOMAC not documented. This is a hard requirement in Anthem's THA criteria. The score must appear in a dated office note. A Harris Hip Score ≤47 is the standard threshold for severe dysfunction supporting surgical candidacy. ▸ PT discharge summary — Physical therapy completion is documented in the narrative but the formal discharge summary is not attached. The discharge summary must confirm that PT was completed, that functional goals were not achieved, and that the patient was discharged from PT due to insufficient progress. ▸ Pre-operative medical clearance — Anthem typically requires this before PA approval for elective surgical procedures. Obtain from the patient's PCP or internist. ▸ Facility network status — Confirm the surgical facility (hospital or ASC) is in-network with Anthem before the PA is submitted. An out-of-network facility requires a separate network exception authorization. ▸ Anesthesia PA — Some Anthem plans require a separate PA for anesthesia services. Verify with Anthem provider relations before the surgery is scheduled.
MOST LIKELY SUCCESSFUL NEXT STEP
Close the two documentation gaps before submitting the PA: 1. Document the Harris Hip Score in the next office note before submission. This single step addresses Anthem's most common denial trigger for THA. 2. Obtain the PT discharge summary from the treating physical therapist. Confirm it explicitly states that functional goals were not achieved and that PT was discontinued due to insufficient progress. Then submit the complete package via the Anthem provider portal. Include: completed PA form, LMN, imaging report, functional score documentation, PT discharge summary, NSAID and injection records, and pre-operative clearance. Anthem's routine PA response time for surgical procedures is typically 3–5 business days.
ALTERNATE PATHWAYS
OPTION 1 · If Denied — File Level 1 Appeal with Peer-to-Peer Request
If Anthem denies the PA, file a Level 1 internal appeal immediately and simultaneously request a peer-to-peer (P2P) call between the requesting orthopedic surgeon and Anthem's medical director. P2P calls for surgical procedures resolve at significantly higher rates when the surgeon can present the functional score, imaging findings, and conservative treatment failure directly. The surgeon's specialty expertise carries elevated weight in P2P reviews for musculoskeletal procedures.
OPTION 2 · Single Case Agreement for Out-of-Network Facility
If the patient's preferred surgical facility is out-of-network with Anthem, the surgeon's office can request a Single Case Agreement (SCA) — a one-time authorization for care at an out-of-network facility at in-network rates. SCAs are granted at Anthem's discretion but are routinely approved when: (1) no in-network facility of equivalent quality is available within a reasonable distance, or (2) the patient has an established relationship with a specific surgeon at the OON facility. Initiate the SCA request before scheduling.
OPTION 3 · External Independent Medical Review
If the Level 1 appeal is denied, file for an Independent Medical Review through the Florida Department of Insurance (fully insured commercial plans only). THA denials for end-stage osteoarthritis with documented conservative treatment failure overturn at a high rate at the IMR level — the clinical evidence for surgical necessity is well-established in the literature and IMR reviewers apply clinical standards, not payer criteria.
ESCALATION GUIDANCE
Level 1 — Submit Complete PA Package Close documentation gaps first. Submit via Anthem provider portal with all required elements. Anthem's routine surgical PA response is 3–5 business days. Level 2 — Level 1 Appeal + Peer-to-Peer If denied: file written appeal immediately and request P2P call with Anthem medical director. The orthopedic surgeon should be prepared to present functional score, imaging findings, and the specific clinical reasons each conservative modality failed for this patient. Level 3 — External IMR (Florida) If Level 1 appeal is denied: file for Independent Medical Review through the Florida Department of Insurance. Free, legally binding. THA denials with documented end-stage OA and conservative treatment failure have a strong IMR track record. Level 4 — Florida OIR Complaint If Anthem fails to respond within required PA timelines or handles the appeal in bad faith, file a complaint with the Florida Office of Insurance Regulation. OIR complaints create a regulatory record and frequently accelerate internal resolution.
NAVIGABILITY OBSERVATION
This case is navigable — and the clinical record is strong. End-stage hip osteoarthritis with 6 months of documented conservative treatment failure across three modalities is a well-established surgical indication. Anthem's criteria are not designed to deny appropriate surgical candidates — they are designed to ensure documentation completeness. The two missing elements (functional score and PT discharge summary) are administrative gaps, not clinical deficiencies. Close them before submission and this PA has a high probability of approval on first submission. The surgeon has the clinical record to win this — PRISM has mapped the documentation path.
ACTION CHECKLIST
Document Harris Hip Score in the next office note before PA submission — this is the single highest-risk gap
Obtain PT discharge summary confirming treatment failure and functional goals not achieved
Obtain pre-operative medical clearance from patient's PCP or internist
Confirm surgical facility is in-network with Anthem — verify before scheduling
Verify whether anesthesia requires a separate PA under this Anthem plan
Gather all imaging reports with radiologist name and report date
Complete Anthem PA form — confirm CPT 27130 and all diagnosis codes are entered correctly
Submit complete package via Anthem provider portal — retain submission confirmation and tracking number
If denied — file Level 1 appeal and request peer-to-peer call with Anthem medical director immediately
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