Medical Claim Appeal Letter Templates & Denial Resolution Library

RE: Level 1 Appeal for Claim #[Claim_Number] - Patient: [Patient_Name] (DOB: [DOB]) Date of Service: [DOS] | Member ID: [Member_ID] | NPI: [Provider_NPI] Dear Appeals Committee, This letter serves as a formal level 1 appeal regarding the denial of Claim #[Claim_Number] for procedure code(s) [CPT_Codes], processed on [Remittance_Date] citing CARC 16 (Claim lacks required information). Enclosed with this submission, please find complete clinical documentation satisfying your request: 1. Signed Operative / Progress Notes establishing clinical rationale. 2. Diagnostic Test Results & Laboratory Analysis for [DOS]. 3. Prior Authorization Confirmation #[Auth_Number] (if applicable). The enclosed records confirm that the services billed strictly adhere to policy [Policy_Number]. We request immediate reprocessing and adjudication for payment. Sincerely, [Billing_Manager_Name], [Practice_Name]

RE: Formal Appeal for Medical Necessity Denial - Claim #[Claim_Number] Patient: [Patient_Name] | Policy ID: [Member_ID] | DOS: [DOS] Dear Medical Director / Review Board, We are appealing the medical necessity rejection of procedure [CPT_Code] billed on [DOS] under Claim #[Claim_Number]. The patient presented with [ICD10_Code - Diagnosis Description]. Conservative treatment management including [Documented_Treatments] was attempted over [Duration] without clinical resolution. Pursuant to CMS Local Coverage Determination (LCD #[LCD_Number]), procedure [CPT_Code] is covered when conservative management is exhausted. The enclosed medical chart explicitly proves all diagnostic criteria were met prior to the encounter. We request a peer-to-peer review or immediate reversal of this decision. Respectfully submitted, [Provider_Name], MD / Billing Department

RE: Appeal for Bundled E/M Service - Claim #[Claim_Number] CPT Codes: [E/M_Code]-25 and [Procedure_Code] | DOS: [DOS] Dear Appeals Department, We are appealing the improper bundling denial of E/M code [CPT_Code] billed with Modifier 25 on [DOS]. Per official AMA CPT guidelines and CMS NCCI Policy Manual Chapter 1, Modifier 25 indicates a 'significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure.' Chart review confirms: - The physician evaluated a distinct chief complaint ([ICD10_1]) independent of the routine pre/post-work associated with [CPT_Procedure] ([ICD10_2]). - Medical Decision Making (MDM) for the E/M service was separately documented. Bundling these distinct services violates NCCI processing rules. Please process payment for [CPT_Code]-25. Sincerely, [Billing_Manager_Name]

RE: Appeal for Timely Filing Denial - Claim #[Claim_Number] Patient: [Patient_Name] | DOS: [DOS] | Timely Filing Limit: [Payer_Limit_Days] Days Dear Timely Filing Appeals Department, This letter appeals the denial of Claim #[Claim_Number] for Date of Service [DOS], rejected citing CARC 29 (Time limit for filing has expired). Our electronic clearinghouse records demonstrate the initial claim was successfully transmitted and accepted by your payer gateway on [Original_Submission_Date], well within your required [Payer_Limit_Days]-day window. Attached Proof of Timely Submission Includes: 1. Clearinghouse EDI 837 Batch Confirmation Report (Batch ID #[Batch_ID]). 2. Payer Electronic Acceptance Report dated [Acceptance_Date]. Since initial transmission occurred within statutory timeframes, we request prompt adjudication and payment. Sincerely, [Billing_Manager_Name]

RE: Appeal for Missing Prior Authorization Denial - Claim #[Claim_Number] Patient: [Patient_Name] | Auth #[Auth_Number] | DOS: [DOS] Dear Prior Authorization Appeals Team, We are formally appealing the rejection of Claim #[Claim_Number] for procedure [CPT_Code], denied citing CARC 197 (Precertification/authorization/notification absent). Prior authorization WAS successfully obtained prior to service delivery under Approval #[Auth_Number] on [Auth_Approval_Date] for [CPT_Code]. Due to an administrative billing error, the authorization number was omitted from Box 23 of the original 1500 claim form. Attached Documentation: - Official Authorization Approval Letter (Auth #[Auth_Number]). - Clinical Notes confirming service matches authorized parameters. Please update Box 23 with Auth #[Auth_Number] and reprocess the claim for payment. Sincerely, [Billing_Manager_Name]

RE: Appeal for Non-Covered Service Denial - Claim #[Claim_Number] Patient: [Patient_Name] | Procedure: [CPT_Code] | DOS: [DOS] Dear Appeals Committee, We are appealing the non-covered service denial (CARC 96) for procedure [CPT_Code] rendered to [Patient_Name] on [DOS]. While your remittance designates [CPT_Code] as non-covered, this procedure is FDA-approved and recognized as standard-of-care under published [Specialty_Society_Name] clinical practice guidelines. Furthermore, review of the patient's Schedule of Benefits confirms that procedures under category [Category_Name] are covered when deemed clinically necessary. Attached clinical records substantiate that alternative therapies were ineffective. We request policy review and reimbursement for this essential service. Sincerely, [Provider_Name], MD