[Date]

Aetna Appeals Department
Re: Appeal of Coverage Exclusion Denial for Psychotherapy, CPT 90834
Member: [Patient Name], [Member ID]
Dates of Service: As listed in Aetna’s denial letter
Diagnosis and Clinical Findings: As documented in Aetna’s denial letter
Insurance Type: Commercial
Denial Category: coverage_exclusion

To Whom It May Concern:

I am submitting this formal appeal on behalf of [Patient Name] to request reconsideration and overturn of Aetna’s denial for CPT 90834 (outpatient psychotherapy, 45 minutes) based on “coverage exclusion.” CPT 90834 is a standard, evidence-based mental health service recognized by national coding authorities, endorsed by professional societies, supported by robust clinical evidence, and expressly included in multiple Aetna coverage and payment policies. A blanket “coverage exclusion” is inconsistent with Aetna’s own official documents and with federal benchmarks and parity requirements governing access to mental health treatment.

Clinical and medical necessity summary
As documented in Aetna’s denial letter, [Patient Name] carries a DSM-consistent mental health diagnosis with clinically significant symptoms and functional impairment, for which structured outpatient psychotherapy is medically necessary. Sessions were delivered by a licensed behavioral health professional, face-to-face, for 45 minutes, using evidence-based, goal-directed interventions. Psychotherapy at this frequency and duration aims to reduce symptom severity, improve coping and functioning, and prevent deterioration or crisis—goals in line with accepted standards of care for common psychiatric conditions.

Why the “coverage exclusion” is improper for CPT 90834

1) Aetna’s own policies explicitly recognize 90834 as a covered, billable service
- Aetna’s Clinical Policy Bulletin lists 90834 by name: “90834 Psychotherapy, 45 minutes with patient and/or family member,” applying to ICD-10 mental disorders (including mood and anxiety disorders). This directly contradicts a blanket exclusion for this CPT code (Source: Aetna – Biofeedback – Medical Clinical Policy Bulletins; https://www.aetna.com/cpb/medical/data/100_199/0132.html).

- Aetna’s integrated care guidance instructs behavioral health clinicians on submitting claims with “Procedure code: 90834 (Psychotherapy with patient, 45 minutes),” and provides diagnosis examples such as F48.9 for primary care behavioral health services—further demonstrating that Aetna treats 90834 as routinely billable (Source: Aetna – Providers collaborating, patients thriving; https://www.aetna.com/healthcare-professionals/documents-forms/integrated-details.pdf).

- Aetna’s Telemedicine and Direct Patient Contact Payment Policy enumerates 90834 among eligible individual psychotherapy codes, including telehealth modifiers, confirming broad coverage rather than exclusion: “Individual psychotherapy 90832, 90833, 90834, 90836, 90837, 90838 GT, 95, FR, FQ or 93 ✓ ✓” (Source: Aetna – Telemedicine and Direct Patient Contact Payment Policy; https://www.aetna.com/content/dam/aetna/pdfs/aetnacom/pdf/telemedicine.pdf).

- Aetna’s Behavioral Health Provider Manual requires DSM-consistent diagnoses, evidence-based treatment, and complete clinical documentation, reflecting a medical-necessity review process—not a blanket exclusion of standard psychotherapy services such as 90834: “Collecting complete and accurate clinical data is critical… Treatment approach is expected to be evidence-based” (Source: Aetna – Behavioral Health Provider Manual; https://www.aetna.com/content/dam/aetna/pdfs/aetnacom/healthcare-professionals/documents-forms/bh-provider-manual.pdf).

Taken together, Aetna’s own official materials confirm that 90834 is recognized and payable when medically necessary. A categorical coverage exclusion conflicts with these policies.

2) National coding and professional standards establish 90834 as routine, non-experimental care
- The American Medical Association defines CPT 90834 as “Psychotherapy, 45 minutes with patient,” for insight-oriented, behavior-modifying, or supportive therapy. AMA’s example vignette mirrors common clinical presentations treated with 90834, underscoring its core role in managing depressive and anxiety symptoms and functional impairment (Source: AMA – CPT code 90834: Psychotherapy, 45 minutes; https://www.ama-assn.org/practice-management/cpt/cpt-code-90834-psychotherapy-45-minutes).

- APA Services notes that 90834 applies to 38–52 minutes of psychotherapy, aligning with DSM-based care and standard outpatient practice. The APA also clarifies appropriate use and documentation expectations, reinforcing 90834’s central role in routine therapy rather than “excluded” status (Source: APA Services – Psychotherapy codes for psychologists; https://www.apaservices.org/practice/reimbursement/health-codes/psychotherapy).

- Practical coding guidance further emphasizes 90834 as the standard code for moderate-intensity individual psychotherapy “lasting approximately 45 minutes,” delivered to address emotional, behavioral, or psychological issues and to improve coping and functioning—again consistent with this patient’s needs (Source: Valant – 90834 CPT Code: Psychotherapy, 45 minute; https://www.valant.io/resources/blog/90834-cpt-code-psychotherapy-45-minutes/).

3) The evidence base supports psychotherapy of this duration as effective and appropriate
- Systematic review evidence confirms that short-term psychotherapy is effective for adult psychiatric disorders: “As psychotherapy is among the treatments of choice for most adult psychiatric disorders, a systematic review… is urgently needed,” with results showing meaningful benefit of short-term courses typical of 45-minute sessions (Source: Short-term versus long-term psychotherapy for adult psychiatric disorders; https://pmc.ncbi.nlm.nih.gov/articles/PMC6626421/).

- Another systematic review supports evidence-based recommendations for psychotherapy duration, indicating that shorter sessions, like 45 minutes, are appropriate for many secondary care mental health conditions (Source: The difference between shorter- versus longer-term psychotherapy; https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-023-04895-6).

- Observational insights similarly note that standard short-term therapies may be modeled on 30–45 minute sessions, consistent with CPT 90834’s timeframe (Source: Longer Therapy Sessions Can Lead To More Positive Outcomes; https://healthforlifegr.com/longer-therapy-sessions-can-lead-to-more-positive-outcomes/).

4) Federal benchmarks and parity considerations weigh against blanket exclusions
- CMS Local Coverage Determinations affirm coverage for medically necessary psychiatric diagnostic and psychotherapy services and clarify the national framework for these services’ legitimacy. For example: “This LCD supplements but does not replace, modify or supersede existing Medicare applicable National Coverage Determinations (NCDs) or payment policy rules and regulations for Psychiatric Diagnostic Evaluation and Psychotherapy Services” (Source: CMS – Psychiatric Diagnostic Evaluation and Psychotherapy; https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=33252).

- Updated LCD guidance further reflects non-discretionary coverage updates for psychiatric services, reinforcing the legitimacy and recognized status of psychotherapy codes: “Consistent with new Medicare benefit changes… This is a non-discretionary coverage update” (Source: CMS – LCD – Psychiatric Codes (L35101); https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=35101).

- CMS also emphasizes that claims processing and billing guidance for psychiatric services are structured and standardized, underscoring that psychotherapy codes like 90834 are established parts of covered care when medically necessary: “NCDs do not contain claims processing information like diagnosis or procedure codes nor do they give instructions to the provider on how to bill Medicare” (Source: CMS – LCD – Psychiatry and Psychology Services (L33632); https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=33632).

- In the commercial market, the Mental Health Parity and Addiction Equity Act (MHPAEA) requires that financial requirements and treatment limitations for behavioral health be no more restrictive than those for medical/surgical benefits. A blanket exclusion of a standard psychotherapy code (90834) risks noncompliance with parity standards, particularly where Aetna’s own policies affirm the service’s coverage when medically necessary.

Requested action
Given that:
- Aetna’s policies expressly identify 90834 as a covered, billable psychotherapy service;
- AMA and APA guidance establish 90834 as national standard of care, not investigational or excluded;
- High-level evidence supports the efficacy of psychotherapy in this duration range for adult psychiatric disorders; and
- Federal coverage benchmarks and parity principles weigh against blanket exclusions of routine psychotherapy,

I respectfully request that Aetna:
1) Overturn the coverage exclusion denial and approve CPT 90834 for the dates of service listed in the denial letter, subject to medical necessity review consistent with Aetna policy.
2) If prior authorization was at issue, conduct a retrospective medical necessity review based on the submitted clinical documentation and authorize coverage accordingly.
3) If Aetna maintains denial, provide the specific plan document citation and exact exclusion language relied upon, and explain how that language can be reconciled with Aetna’s published policies recognizing 90834 as a covered service.

We are available to provide progress notes, treatment plans, and any additional documentation you require to complete an expedited re-review. Please contact [Provider Name] at [Phone] or [Secure Fax/Email]. Timely approval will help avoid treatment disruption and prevent clinical deterioration.

Thank you for your prompt reconsideration.

Sincerely,

[Provider Name], [Credentials]
[Practice Name]
[Address]
[Phone] | [Fax]

References (selected excerpts and policies cited)
- American Medical Association – CPT code 90834: Psychotherapy, 45 minutes; https://www.ama-assn.org/practice-management/cpt/cpt-code-90834-psychotherapy-45-minutes
- APA Services – Psychotherapy codes for psychologists; https://www.apaservices.org/practice/reimbursement/health-codes/psychotherapy
- Valant – 90834 CPT Code: Psychotherapy, 45 minute; https://www.valant.io/resources/blog/90834-cpt-code-psychotherapy-45-minutes/
- Aetna – Biofeedback – Medical Clinical Policy Bulletins (includes 90834 listing); https://www.aetna.com/cpb/medical/data/100_199/0132.html
- Aetna – Providers collaborating, patients thriving (integrated care details); https://www.aetna.com/healthcare-professionals/documents-forms/integrated-details.pdf
- Aetna – Telemedicine and Direct Patient Contact Payment Policy; https://www.aetna.com/content/dam/aetna/pdfs/aetnacom/pdf/telemedicine.pdf
- Aetna – Behavioral Health Provider Manual; https://www.aetna.com/content/dam/aetna/pdfs/aetnacom/healthcare-professionals/documents-forms/bh-provider-manual.pdf
- Systematic review: Short-term versus long-term psychotherapy for adult psychiatric disorders; https://pmc.ncbi.nlm.nih.gov/articles/PMC6626421/
- Systematic review: The difference between shorter- versus longer-term psychotherapy; https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-023-04895-6
- Observational summary: Longer Therapy Sessions Can Lead To More Positive Outcomes; https://healthforlifegr.com/longer-therapy-sessions-can-lead-to-more-positive-outcomes/
- CMS – Psychiatric Diagnostic Evaluation and Psychotherapy (LCD 33252); https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=33252
- CMS – LCD – Psychiatric Codes (L35101); https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=35101
- CMS – LCD – Psychiatry and Psychology Services (L33632); https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?LCDId=33632

Note: The diagnosis and clinical findings referenced herein are those documented in Aetna’s denial letter and accompanying clinical submissions; full records are available for review upon request.