Appeal Aetna Total Hip Replacement Denial — Letter Template & Deadlines

Getting an Aetna denial for a total hip replacement can feel like a punch to the gut, especially when you know your patient clearly meets medical necessity criteria. An appeal of a total hip arthroplasty (CPT 27130) denial has to show, from the patient's own records, each criterion in Aetna's hip arthroplasty policy.

Why Aetna Denies Total Hip Replacement

Insufficient Documentation of Conservative Treatment Duration
Aetna's Clinical Policy Bulletin 0287, Hip Arthroplasty, requires at least 12 weeks of unsuccessful conservative therapy, or at least 24 weeks for members with a relative contraindication (the policy names a body mass index over 40 and age under 50). At least half of that therapy must be formal, in-person physical therapy in the past year, confirmed by the PT notes or the claims history, and the treatment should include anti-inflammatory medications or analgesics, flexibility and strengthening exercises and activity modification unless contraindicated; members with a relative contraindication also need an assistive device and therapeutic hip injections. Where conservative therapy is not appropriate (the policy gives examples such as avascular necrosis with collapse of the femoral head or bone-on-bone arthritis in the weight-bearing part of the joint), the record must say why. The same policy treats a corticosteroid injection into the hip within 12 weeks of the planned surgery as an absolute contraindication, so check injection dates before you cite them. A request fails this criterion when the record does not show the dates, duration and result of each treatment, so state plainly what was tried, for how long, and why it did not work.

Inadequate Functional Limitation Documentation
Aetna requires clear evidence that the patient's hip condition significantly impairs their ability to perform activities of daily living. Generic statements like "patient reports pain" won't cut it. The insurer expects detailed documentation of specific functional limitations, such as inability to walk more than one block, difficulty with stairs, problems with dressing, or interference with work duties. Many denials stem from vague functional assessments that don't paint a clear picture of disability. Objective measures help, such as walking distance, pain scores during specific activities, and the documented effect on work or daily tasks.

Missing or Inadequate Imaging Correlation
CPB 0287 requires radiographic evidence of either avascular necrosis at stage II or III, or moderate to severe osteoarthritis or rheumatoid arthritis of the hip (Tonnis grade 2 or 3), along with limited range of motion, an antalgic gait and hip pain with passive motion on examination. Common problems are imaging reports that do not state the grade, reports that do not match the clinical presentation, and old films that no longer reflect the joint. Findings such as joint space narrowing, subchondral sclerosis and osteophytes should be described in the report and tied to the patient's symptoms.

What You Need to Win This Appeal

Comprehensive Conservative Treatment Documentation
Gather detailed records showing the timeline and failure of all conservative treatments. This includes physical therapy notes with specific exercises attempted and patient response, medication lists with dosages and duration, injection records with temporary or lack of relief noted, and activity modification attempts. Document any side effects or contraindications to conservative treatments. Include specific dates and duration for each treatment modality attempted.

Detailed Functional Assessment Documentation
Compile objective evidence of functional limitations including completed disability questionnaires (Harris Hip Score, WOMAC, or similar validated instruments), work restrictions or modifications documented by treating physicians, specific activities of daily living affected with measurable limitations, and third-party observations from family members or employers. Include any assistive device requirements and their impact on function.

Current and Relevant Imaging Studies
Ensure you have current radiographs whose report states the grade of arthritis (CPB 0287 asks for Tonnis grade 2 or 3) or the stage of avascular necrosis (stage II or III), progression reports comparing current imaging to previous studies, and radiology reports that correlate the imaging findings with the clinical symptoms. Include any additional imaging that supports the diagnosis, such as MRI used to stage avascular necrosis.

Clinical Evidence Supporting Medical Necessity
Reference the American Academy of Orthopaedic Surgeons (AAOS) clinical practice guideline and appropriate use criteria for management of osteoarthritis of the hip where they fit the patient's presentation. Document how your patient meets established criteria for total hip replacement candidacy. Include relevant clinical studies or evidence-based medicine references that support surgical intervention for your patient's specific condition and functional status.

Step-by-Step: Appealing Your Aetna Total Hip Replacement Denial

Review Aetna's Specific Appeal Requirements
Deadlines depend on who is appealing and on the plan. A member of an ACA-compliant commercial or ERISA group health plan, or the provider acting as the member's authorized representative, has at least 180 days from the adverse benefit determination to file an internal appeal. A Medicare Advantage enrollee (or a non-contracted provider with a waiver of liability) has 65 days from the notice to request plan reconsideration. Provider disputes under a participation contract follow the contract. Aetna's disputes and appeals page for providers says claim decisions based on medical necessity skip its reconsideration step and go straight to appeal, with up to 180 days to file for Medicare and commercial plans and up to 65 days for Medicare non-contracted providers; for other disputes, a reconsideration is due within 180 calendar days of the claim decision and an appeal within 60 calendar days of the reconsideration decision. State law and your contract can change these windows, so check the contract and the denial notice before you count days. Submit to the address or portal the denial letter gives; Aetna's provider appeal addresses differ by line of business (commercial, Medicare contracted and Medicare non-contracted), and state-specific exceptions may apply. Include the patient's member ID, claim number, and service dates in all correspondence.

Prepare Your Appeal Documentation
Format your appeal letter on practice letterhead with clear section headers for easy review. Lead with a concise summary stating why the denial was incorrect, followed by detailed clinical justification. Organize supporting documentation chronologically and tab each section. Include a cover letter summarizing the key evidence and referencing specific pages in the attached documentation.

Utilize Aetna's Peer-to-Peer Review Process
If the denial was a precertification decision, request a peer-to-peer review as soon as it arrives rather than after an appeal is denied. The terms Aetna shows on its medical Clinical Policy Bulletins page say that, under certain circumstances, the physician may request a peer-to-peer review to discuss a medical necessity precertification determination made by its medical director. During peer-to-peer calls, focus on functional limitations and failed conservative treatment rather than imaging findings alone. Prepare talking points in advance and have the patient's complete file available during the call.

Track Appeal Status and Deadlines
Aetna's disputes and appeals page says requests filed through Availity can be tracked there, requests sent by mail or fax can be checked by phone, and a decision on a provider appeal is sent within 60 business days of receiving the appeal or any additional information Aetna requests. Member appeals follow other time frames: for Medicare Advantage, standard pre-service reconsiderations are decided within 30 days, payment reconsiderations within 60 days and expedited ones within 72 hours; for commercial plans, the plan documents and the denial notice state the time frame. Document all communications and maintain copies of all submitted materials.

Sample Appeal Arguments for Total Hip Replacement Denials

Conservative Treatment Failure Argument
"Over [12 or more] weeks of documented conservative therapy, the patient completed [8] weeks of supervised, in-person physical therapy with minimal improvement in function, as documented by PT notes showing continued inability to achieve hip flexion beyond 90 degrees and persistent pain with weight-bearing activities. Anti-inflammatory medications provided only temporary relief and were discontinued due to gastrointestinal side effects. Two intra-articular corticosteroid injections, on [dates], provided less than 2 weeks of partial relief each, indicating structural joint damage beyond conservative management capabilities."

Functional Limitation Evidence
"Objective functional assessment demonstrates severe limitations incompatible with the patient's occupational requirements as a teacher, requiring prolonged standing and walking. Harris Hip Score of 32 indicates severe functional impairment, with documented inability to walk more than 50 feet without rest, difficulty with stair negotiation requiring handrail assistance, and inability to perform job duties without accommodation. These limitations significantly impact quality of life and economic productivity."

Clinical Guidelines Compliance
"This patient meets the criteria in Aetna Clinical Policy Bulletin 0287 for total hip arthroplasty: pain and functional disability that interfere with activities of daily living; limited range of motion, an antalgic gait and hip pain with passive motion on examination; radiographic moderate to severe osteoarthritis (Tonnis grade [2 or 3]) on [date]; and [number] weeks of unsuccessful conservative therapy, at least half of it formal in-person physical therapy in the past year. The combination of objective functional limitations, failed conservative treatment, and appropriate surgical candidacy establishes medical necessity for CPT 27130."

Disease Progression Documentation
"Comparison imaging over 18 months demonstrates progressive joint space narrowing from mild to severe, with new subchondral cyst formation and increasing osteophyte development. This radiographic progression correlates directly with worsening clinical symptoms and functional decline, supporting the medical necessity for surgical intervention before further joint destruction occurs."

Appeal letter template

Fill in the bracketed fields from the denial letter and the chart, and delete any paragraph that does not apply.

[Practice name]
[Address]
Phone: [phone]; Fax: [fax]
NPI: [NPI]; Tax ID: [Tax ID]

[Date]

Aetna
[Appeals address or fax number from the denial letter]

Re: Appeal of total hip arthroplasty denial
Patient: [patient name]
Member ID: [member ID]
Claim or precertification number: [number]
Date of service: [date of service or planned surgery date]
Procedure: CPT 27130; Diagnosis: [ICD-10 code(s)]

We request reconsideration of Aetna's [date] denial of total hip arthroplasty (CPT 27130) for [patient name]. The denial states [denial reason as written]. The enclosed records show the patient meets each criterion in Aetna Clinical Policy Bulletin 0287, Hip Arthroplasty.

Hip pain and functional disability interfere with activities of daily living: [specific limitations, such as walking distance or stairs, with Harris Hip Score or WOMAC scores]. The examination on [date] documents limited range of motion ([measurements]), an antalgic gait and hip pain with passive range of motion. Radiographs dated [date] show [moderate or severe osteoarthritis or rheumatoid arthritis, Tonnis grade 2 or 3, or avascular necrosis, stage II or III], with [findings as reported].

The patient completed [number] weeks of unsuccessful conservative therapy, including [number] weeks of formal in-person physical therapy within the past year, [anti-inflammatory medication or analgesic, with dates], [flexibility and strengthening exercises] and [activity modification], with [response to each]. [If a relative contraindication in the policy applies, state it, the longer course completed, and the assistive device and hip injections used.] The last corticosteroid injection into the hip was on [date], [number] weeks before the planned surgery. [If conservative therapy was not appropriate, state why.]

Policy at issue: [policy name and number, if the denial cites one].

We ask Aetna to overturn the denial and [approve the precertification or reprocess the claim]. Please contact [name] at [phone] with questions.

Enclosures:
Copy of the denial letter
Office notes with the examination findings
Physical therapy notes with dates, exercises and response
Medication and injection records with dates and response
Functional assessment scores and any work restrictions
Radiology reports stating the arthritis grade or necrosis stage, with comparison studies

Sincerely,
[Name]
[Title]
[Practice name]

Key Takeaways

• Focus on objective functional limitations and measurable impacts on daily activities rather than subjective pain complaints alone
• Document comprehensive conservative treatment duration with specific failure mechanisms and contraindications to continued non-surgical management
• Ensure imaging studies are current and correlate directly with clinical presentation and symptom severity
• Utilize peer-to-peer review opportunities with orthopedic colleagues to discuss clinical rationale and address specific denial concerns
• Tools like AI-powered appeal generators can draft your Total Hip Replacement appeal letter in a few minutes, matching your clinical documentation to Aetna's policy criteria when one is on file.