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Hip Arthroplasty (partial and total hip replacement)
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Medical necessity criteria and exclusions for partial (hemi) and total hip replacement procedures; governs coverage determinations for members receiving hip arthroplasty.
06/18/26 — Annual review; policy intent unchanged.
10/16/25 — Off cycle review. Removed 'and on a renal transplant list' from the not medically necessary indications for total hip.
06/26/25 — Annual review, policy statement regarding bilateral simultaneous hip replacement was removed from the policy.
Coverage Criteria for Hip Arthroplasty
inv-01: Partial hip replacement — fracture — ANY of the following when ALL associated criteria are met
Partial hip replacement is medically necessary for ANY of the following when ALL associated criteria are met:
chunks 3-4
inv-02: Partial hip replacement — AVN — ALL associated criteria (includes non-surgical trial requirement and imaging findings)
Partial hip replacement is medically necessary for AVN when ALL associated criteria are met:
chunk 5
chunks 6-7
chunks 8-9
inv-03: Total hip replacement — fracture and degenerative/AVN/inflammatory indications — ANY of the following when ALL associated criteria are met
Total hip replacement is medically necessary for ANY of the following when ALL associated criteria are met:
chunks 16-17
chunks 18-19,20
inv-04: Primary Total Hip Replacement - Medical Necessity Criteria — ALL of the following
Primary total hip replacement is medically necessary when ALL of the following are met:
chunks 18-19
chunks 18-20
chunk 22
chunk 24
inv-05: Revision Hip Replacement - Indications — ANY of the listed postoperative conditions
Revision hip replacement (partial or total) is medically necessary when ANY of the following postoperative conditions are present:
chunks 31-37
inv-06: Medically Necessary Indications — specific indications for revision hip replacement
Revision of hip replacement is considered medically necessary for the following specific indications:
chunks 36-39
inv-07: Not Medically Necessary — policy exclusions and 'not medically necessary' logic
Not medically necessary:
chunk 40
Partial hip replacement is not medically necessary for any indication or condition not specifically listed as medically necessary. It is also not medically necessary when any of the following contraindications are present: active local or systemic infection; vascular insufficiency, significant muscular atrophy of the leg, or neuromuscular disease severe enough to compromise implant stability or postoperative recovery; Charcot joint; or inflammatory arthritis affecting both the femoral head and the acetabulum.
Total hip replacement is not medically necessary for any indication or condition not explicitly identified as medically necessary. Additionally, a primary total hip replacement is not medically necessary when active local or systemic infection is present. Claims may also be denied if listed contraindications that compromise implant stability or recovery are documented.
Specific contraindications that render hip arthroplasty not medically necessary include: vascular insufficiency; significant muscular atrophy of the leg; and neuromuscular disease severe enough to compromise implant stability or postoperative recovery. In addition, for total hip replacement the policy lists individuals undergoing dialysis as a condition associated with noncoverage risk. These conditions should be documented in the medical record and will place the procedure at high risk for denial.
Revision hip replacement (partial or total) is not medically necessary for any indication or condition that is not specifically listed among the policy's medically necessary revision indications. If the clinical scenario does not match an approved revision indication, the request should be considered not medically necessary.
Coverage of hip arthroplasty services is contract dependent. If a product does not cover a specific service, the medical policy's clinical criteria do not apply. When a product does cover the service, the policy criteria guide coverage determinations and prior authorization requirements.
Partial hip replacement requests that do not meet the policy's listed medically necessary indications will be denied as not medically necessary. Denial conditions include the presence of any listed contraindication such as active infection, vascular insufficiency or significant muscular atrophy, neuromuscular disease compromising recovery, Charcot joint, or inflammatory arthritis affecting both the femoral head and acetabulum.
Primary total hip arthroplasty is not medically necessary when any of the policy's contraindications are present. Examples include active local or systemic infection, vascular insufficiency or significant muscular atrophy of the leg, neuromuscular disease severe enough to compromise implant stability or recovery, and situations such as patients undergoing dialysis that increase risk and may preclude benefit.
Requests for revision hip replacement will be considered not medically necessary if the clinical indication is not one of the postoperative conditions enumerated in the policy. The policy's approved revision indications must be met for coverage; otherwise the procedure should be denied.
Policy history: an off-cycle review on 10/16/25 revised the not medically necessary language by removing the phrase "and on a renal transplant list" from the total hip not medically necessary indications. This change was recorded in the policy revision history.
Coding and Timing Details
| 27125 | Hemiarthroplasty, hip, partial (e.g., femoral stem prosthesis, bipolar arthroplasty) |
| 27130 | Arthroplasty, acetabular and proximal femoral prosthetic replacement (total hip arthroplasty), with or without autograft or allograft |
| 27132 | Conversion of previous hip surgery to total hip arthroplasty, with or without autograft or allograft |
| 27134 | Revision of total hip arthroplasty; both components, with or without autograft or allograft |
| 27137 | Revision of total hip arthroplasty; acetabular component only, with or without autograft or allograft |
| 27138 | Revision of total hip arthroplasty; femoral component only, with or without allograft |
| No codes listed |
| M05.051-M08.959 | Inflammatory polyarthropathies (hip) (code range) |
| M12.551-M12.559 | Traumatic arthropathy, hip (code range) |
| M16.0-M16.9 | Osteoarthritis of hip (code range) |
| M80.051A-M80.059S, M80.851A-M80.859S, M84.451A-M84.453S, M84.459A-M84.459S | Pathologic fracture of neck of femur (hip) (code ranges) and related |
| M87.051-M87.059, M87.151-M87.159, M87.251-M87.256 | Atypical femoral fracture / Osteonecrosis of femur and thigh (code ranges) |
| M97.01XA-M97.02XS | (code range) |
| S72.001A-S72.26XS | Fracture of head and neck of femur (code range) |
| M05.051-M08.959 | Inflammatory polyarthropathies (hip) (code range) |
| M12.551-M12.559 | Traumatic arthropathy, hip (code range) |
| M16.0-M16.9 | Osteoarthritis of hip (code range) |
| M80.051A-M80.059S | Pathologic fracture of neck of femur (hip) (code range) |
| M80.851A-M80.859S | |
| M84.451A-M84.453S | |
| M84.459A-M84.459S | |
| M84.551A-M84.559S | |
| M84.651A-M84.659S | |
| M84.750A-M84.759S |
Prior Authorization, Documentation, and Denial Risks
Document fracture imaging and failed/unsuitable fixation
Prior authorization must include imaging that documents a fracture of the femoral head or femoral neck and indicate that conservative management or surgical fixation is not considered a reasonable option for the fracture.
- Include radiology reports or images showing femoral head/neck fracture.
- Document why conservative treatment or fixation is not appropriate.
Include imaging showing collapse or Tönnis Grade 2–3
For AVN, OA, or inflammatory arthritis indications, prior authorization must include imaging evidence such as collapse of the femoral head (AVN) or Tönnis Grade 2–3 osteoarthritis, plus clinical documentation of function-limiting symptoms.
- Imaging demonstrating AVN with femoral head collapse or Tönnis Grade 2–3 OA.
- Clinical notes documenting function-limiting pain and loss of hip function.
Confirm required imaging findings and clinical failure in prior auth
Prior authorization submissions must confirm imaging findings that meet policy criteria (one of: Tönnis Grade 2–3; AVN with femoral head collapse; or inflammatory arthritis with joint space narrowing) and document function‑limiting pain and failure of conservative management unless an exception is justified.
- State which imaging criterion is met and attach supporting images/reports.
- Provide documentation of function‑limiting pain and non‑surgical management attempts or documented exception.
Obtain prior auth for listed hip arthroplasty CPT codes
Prior authorization is expected for the hip arthroplasty CPT codes listed in the policy; include clinical documentation tied to the requested CPT code(s) and applicable diagnosis codes.
Verify product coverage before prior authorization
Confirm that the member’s product covers the service before relying on the policy; prior authorization and policy criteria apply only when the product benefit includes the service.
- If a product does not cover the service, medical policy criteria do not apply and the claim may be denied.
- If coverage is through Medicare or Medicaid, follow the product‑specific guidance noted in the policy.
Document ≥3 months of provider‑directed non‑surgical management for AVN
Document an adequate trial of provider‑directed non‑surgical management of at least three (3) months for AVN prior to partial hip replacement unless the medical record clearly documents why non‑surgical management is inappropriate.
- Record duration and specifics of non‑surgical treatments and their outcomes.
- If an exception is claimed, document the clinical reason (see exception documentation block).
Require documentation of failed ≥3‑month non‑surgical trial before primary THA
Prior authorization and clinical records must show failure of at least three (3) months of provider‑directed non‑surgical management before primary total hip arthroplasty, unless the medical record documents why non‑surgical management is inappropriate.
- Attach records describing the non‑surgical modalities attempted and dates.
- If an exception is documented, include the clinical justification and supporting imaging.
Document non‑surgical management trial prior to revision when indicated
For revision procedures, document an adequate trial of provider‑directed non‑surgical management where indicated (e.g., unexplained, function‑limiting pain) prior to consideration of revision surgery.
- Provide evidence of non‑surgical treatments tried and duration when revision is sought for persistent pain or dysfunction.
- Document reasons for proceeding to revision when non‑surgical management was not feasible or unsuccessful.
No explicit step therapy pathway specified
The policy does not define explicit step therapy pathways; do not rely on a step‑therapy algorithm from this policy when preparing prior authorization — instead follow the documented non‑surgical management and exception guidance.
- No specific stepwise sequence is mandated in the policy text.
- Document the specific non‑surgical interventions used (see examples block).
Document reasons when claiming exception to non‑surgical management
If non‑surgical management is considered inappropriate, the medical record must clearly document the reason (for example, collapse of the femoral head, inflammatory arthritis, or advanced dysplasia) to support an exception to the ≥3‑month requirement.
- Describe the clinical rationale and attach supporting imaging or specialist opinions.
- State explicitly which exception from the policy is being applied and why.
Provide required clinical documentation of pain duration and failed conservative care
Required clinical documentation for prior authorization should demonstrate function‑limiting pain for at least three (3) months and failure of at least three (3) months of provider‑directed non‑surgical management, or clearly document why non‑surgical management is inappropriate.
- Include history of symptom duration, functional limitations, and prior treatments.
- Attach imaging that meets the policy’s imaging criteria (e.g., Tönnis Grade, AVN collapse).
List prior non‑surgical management attempts and responses
Document prior non‑surgical management interventions such as activity modification, weight loss, medications, assistive devices, and intra‑articular injections when submitting prior authorization or claims.
- List specific treatments, dates, and response to each modality.
- Include notes on functional impact and objective measures where available.
Cross‑reference and document applicable Medicare LCD/LCA
When Medicare is the payer, reference and document alignment with applicable CMS local coverage determinations (e.g., LCD L36039 and LCA A57428) as noted in the policy.
- Attach or cite the relevant LCD/LCA when Medicare coverage is claimed.
- Explain how the case meets both the policy criteria and any applicable Medicare local guidance.
Avoid submission when listed contraindications are present (denial risk)
Partial hip replacement and total hip replacement claims will be denied if any listed contraindications are present; ensure the medical record confirms absence of active local or systemic infection, vascular insufficiency, significant muscular atrophy, neuromuscular disease compromising implant stability or recovery, Charcot joint, or inflammatory arthritis affecting both femoral head and acetabulum.
- Explicitly document infection status and vascular/neuromuscular exam findings.
- If any contraindication is present, do not submit as medically necessary per this policy.
Document absence of contraindications for primary THA to avoid denial
Claims for total hip replacement may be denied if documented contraindications exist (active infection; vascular insufficiency, significant muscular atrophy, neuromuscular disease compromising implant stability or recovery; or if the individual is undergoing dialysis).
- Confirm and document absence of these contraindications before requesting authorization.
- If the member is on dialysis or has severe neuromuscular disease, include specialist consultation explaining risk/benefit if proceeding.
Do not submit revisions for indications outside policy — risk of denial
Revision procedures are not considered medically necessary for indications not listed in the policy; ensure the reason for revision matches one of the policy’s approved indications.
- Approved revision indications are listed in the policy and must be documented (e.g., aseptic loosening, periprosthetic infection, periprosthetic fracture, implant instability).
- If the indication is not listed, expect denial.
Verify contract/product coverage to prevent denials
Services are contract dependent; verify benefit coverage before submission because if the product excludes the service, the policy criteria do not apply and the claim may be denied.
- Confirm benefit coverage with eligibility/benefit or payer prior to scheduling surgery or requesting authorization.
- If product does not cover service, do not submit under this policy.
Background and Scope
Background: Hip arthroplasty includes partial (hemiarthroplasty) and total hip replacement. Indications covered by this policy include displaced femoral head or neck fractures, osteoarthritis with radiographic severity (e.g., Tönnis Grade 2-3), avascular necrosis with collapse of the femoral head, and inflammatory arthritis with joint space narrowing affecting both the femoral head and acetabulum. Clinical criteria require documentation of imaging findings and function-limiting symptoms, and generally a trial of conservative management before arthroplasty is approved.
Key Definitions and Imaging Criteria
Policy Revision History
Annual review; policy intent unchanged.
Off-cycle review that removed 'and on a renal transplant list' from the not medically necessary indications for total hip.
Annual review that removed the policy statement regarding bilateral simultaneous hip replacement.
Summary of changes tracking implemented.
Original effective date of the policy.
Policy history entry recorded (12/20/18).
Policy history entry recorded (06/20/19).
Policy history entry recorded (12/19/19).
Policy history entry recorded (12/17/20).
Policy history entry recorded (04/15/21).
Policy history entry recorded (04/21/22).
Policy history entry recorded (04/20/23).
Policy history entry recorded (10/17/24).
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