Aetna CPB 0348 Update: Recurrent Pregnancy Loss Testing Coverage Policy, Effective September 26, 2025

Aetna, a CVS Health company, modified CPB 0348 governing recurrent pregnancy loss (RPL) evaluation testing, effective September 26, 2025. Here's what billing teams need to know.

This update to the Aetna recurrent pregnancy loss coverage policy affects a broad set of diagnostic codes — including CPT 81241 for Factor V Leiden genetic testing, CPT 85307 for APC resistance assay, CPT 76831 for saline infusion sonohysterography, CPT 86146 and 86147 for antiphospholipid antibody panels, and CPT 84443 for TSH — across OB/GYN, reproductive endocrinology, laboratory, and radiology billing. The policy defines medical necessity for nine distinct categories of RPL workup testing, each with specific criteria your billing team needs to apply at the claim level before September 26, 2025.

---

Quick-Reference Table

Field	Detail Copy
Payer	Aetna, a CVS Health company
Policy	Recurrent Pregnancy Loss
Policy Code	CPB 0348
Change Type	Modified
Effective Date	September 26, 2025
Impact Level	High
Specialties Affected	OB/GYN, Reproductive Endocrinology, Clinical Laboratory, Radiology, Hematology
Key Action	Audit charge capture for RPL workup codes against the nine medical necessity criteria — especially the APC resistance assay prerequisite for CPT 81241 and the DOAC exception — before September 26, 2025

---

Aetna Recurrent Pregnancy Loss Coverage Criteria and Medical Necessity Requirements 2025

The Aetna recurrent pregnancy loss coverage policy defines RPL as two or more consecutive spontaneous abortions. That definition matters. One miscarriage doesn't qualify a member for this workup. Two non-consecutive losses don't either. Consecutive is the operative word — document it explicitly in the medical record before you bill any of these codes.

Aetna considers nine categories of testing medically necessary under CPB 0348 in the CPB 0348 Aetna system when the consecutive-loss threshold is met. Each category has its own covered codes and, in some cases, additional clinical prerequisites.

Category 1 — Luteal Phase Defect: Endometrial biopsy using CPT 58100 is covered for evaluation of luteal phase defect in RPL members.

Category 2 — Factor V Leiden / Thrombophilia: CPT 81241 (Factor V Leiden, F5 gene analysis, Leiden variant) is covered only when the member has an abnormal activated protein C resistance assay result (CPT 85307). This is a gating criterion — you cannot bill CPT 81241 without documented APC resistance assay failure unless the member is on a direct oral anticoagulant (DOAC). Aetna waives the APC prerequisite for members taking apixaban (Eliquis), dabigatran (Pradaxa), rivaroxaban (Xarelto), or edoxaban (Savaysa). Document the DOAC in the chart if you're using that exception.

Category 3 — Uterine Anatomy: Hysterosalpingography (CPT 74740), hysteroscopy (CPT 58555–58563), and saline infusion sonohysterography/sonohysterography (CPT 58340, CPT 76831) are covered for diagnosis of uterine anatomic abnormalities.

Category 4 — Parental Karyotype: Karyotype of both parents to detect balanced chromosomal anomalies is covered. This uses tissue culture codes in the 88230–88239 range plus chromosome analysis codes.

Category 5 — Abortus Tissue Karyotype: If a couple already diagnosed with RPL has a subsequent spontaneous abortion, Aetna covers karyotyping of the abortus tissue. This is a separate indication from parental karyotype — don't conflate them at the claim level.

Category 6 — Antiphospholipid Syndrome: CPT 86146 (anti-beta2-glycoprotein I antibody, IgG or IgM), CPT 86147 (anti-cardiolipin antibody, each Ig class), and lupus anticoagulant testing via CPT 85705 are covered using standard assays for antiphospholipid syndrome diagnosis.

Category 7 — Pelvic Ultrasound: CPT 76856 and CPT 76857 (non-obstetric pelvic ultrasound) are covered to assess ovarian morphology and the uterine cavity.

Category 8 — Prenatal Genetic Diagnosis: When one partner has a confirmed balanced translocation or inversion, Aetna covers prenatal genetic diagnosis for that couple. This ties directly to the parental karyotype finding from Category 4.

Category 9 — Thyroid Evaluation: CPT 84443 (TSH) and CPT 86800 (thyroglobulin antibody) are covered, along with thyroperoxidase antibody testing, as part of the RPL workup.

The coverage policy does not reference prior authorization requirements for this workup within CPB 0348 itself. That said, prior auth requirements can vary by plan. Confirm plan-level prior authorization rules for hysteroscopy and genetic testing codes before billing — especially for CPT 81241 and the molecular pathology codes in the 81402–81408 range.

Reimbursement for these services flows through standard fee schedule rates. There's no special RPL bundle. Each service codes and bills independently, which means your documentation has to justify each individual code on its own medical necessity merits.

---

Aetna Recurrent Pregnancy Loss Exclusions and Non-Covered Indications

The policy has explicit carve-outs worth flagging.

Molecular pathology codes 81402–81408 are covered for RPL-related genetic analysis but are not covered for mitochondrial DNA variations analysis. If your lab routinely runs mtDNA panels as part of a broader workup, those won't clear under CPB 0348.

Chromosome analysis codes 88245–88251 and molecular diagnostics codes 83890–83914 are covered — but not for preimplantation genetic screening (PGS). This is a hard exclusion. PGS is a separate clinical service and a separate coverage question. Billing PGS under the RPL indication is a fast path to claim denial.

HLA antibody codes 86828–86835 appear on the covered list, but coverage for HLA testing in RPL contexts has historically been variable across Aetna plans. Verify at the plan level before billing these.

---

Coverage Indications at a Glance

---

Aetna Recurrent Pregnancy Loss Billing Guidelines and Action Items 2025

Copy Action Items

---

CPT, HCPCS, and ICD-10 Codes for Recurrent Pregnancy Loss Under CPB 0348

Covered CPT Codes (When Selection Criteria Are Met)

The full policy includes 171 CPT codes and 89 HCPCS codes. Review the complete code list at the Aetna CPB 0348 source document.

Not Covered Indications (Within Otherwise Covered Codes)

Code Range	Type	Exclusion Copy
CPT 81402–81408	CPT	Not covered for mitochondrial DNA variations analysis
CPT 83890–83914	CPT	Not covered for preimplantation genetic screening
CPT 88245–88251	CPT	Not covered for preimplantation genetic screening

Key ICD-10-CM Diagnosis Codes

The policy lists 39 ICD-10-CM codes. The specific codes were not included in the data excerpt provided. Review the full ICD-10 code list in the Aetna CPB 0348 source document to confirm which recurrent pregnancy loss and related diagnosis codes Aetna recognizes under this policy.

---