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Denial Code Explorer
Look up any denial reason code. Get plain-English explanations, root causes, and see how Synaipse automatically handles appeals.
Look up any denial reason code. Get plain-English explanations, root causes, and see how Synaipse automatically handles appeals.
Modifier doesn't match the procedure code billed, or a required modifier is missing.
Our Billing Agent automatically validates modifier-procedure combinations before submission, preventing this denial. If received, the Appeal Agent identifies the correct modifier and generates an appeal with supporting documentation.
Authorization was not obtained prior to service, the auth number is invalid, or the authorized services don't match what was billed.
Synaipse's Prior Auth Agent checks authorization status in real time before claims are submitted. When a missing or expired auth is detected, it automatically initiates a new authorization request or flags the claim for review before submission.
The patient's insurance coverage ended before the date of service, often due to a lapsed policy or job change.
Synaipse's Eligibility Agent verifies coverage in real time before each encounter. If coverage has lapsed, the system alerts front desk staff immediately and suggests alternative billing pathways or patient self-pay options.
The payer required prior authorization or precertification for the service, but none was obtained before the procedure was performed.
Synaipse's Prior Auth Agent cross-references every scheduled procedure against payer-specific auth requirements. It automatically submits precertification requests days before the service date and tracks approval status, ensuring no claim is filed without proper authorization.
Authorization was eventually obtained, but not within the payer's required timeframe before the service was rendered.
Synaipse monitors upcoming appointments and triggers auth requests as early as possible. The system tracks payer-specific lead time requirements and escalates urgent cases, dramatically reducing late-auth denials.
The service was performed by a provider who is out-of-network or was not the patient's designated primary care provider as required by the plan.
Synaipse's Eligibility Agent verifies network status and PCP assignment before each visit. If a network mismatch is detected, staff is alerted to obtain a referral or redirect the patient, preventing costly out-of-network denials.
The payer determined the service was not medically necessary based on the diagnosis submitted, or the documentation did not support the level of service billed.
Synaipse's Coding Agent reviews diagnosis-to-procedure mappings against payer medical policies before submission. When a medical necessity risk is detected, it suggests stronger ICD-10 codes or flags the claim for additional clinical documentation.
The payer considers the procedure or treatment experimental, investigational, or not yet approved under the patient's specific plan.
Synaipse's Appeal Agent compiles peer-reviewed literature, clinical guidelines, and FDA approvals to build a comprehensive medical necessity argument. It generates a fully drafted appeal letter with citations for physician review and signature.
The payer has not credentialed or approved this specific provider to perform the billed procedure, or the provider type doesn't match the service.
Synaipse's Credentialing Agent monitors provider-payer enrollment status and flags any gaps. If a denial occurs, it initiates the credentialing update and generates an appeal citing the provider's qualifications and active enrollment.
The clinical documentation submitted was insufficient to justify the level or type of service billed, according to the payer's review criteria.
Synaipse's Documentation Agent analyzes chart notes against payer-specific documentation requirements before claim submission. It identifies gaps in clinical documentation and prompts providers to add supporting details, reducing insufficient-info denials by catching them before they happen.
The diagnosis code submitted does not clinically support or justify the procedure that was performed, based on payer medical policy.
Synaipse's Coding Agent cross-references diagnosis and procedure code pairs against CCI edits and payer-specific medical policies. It flags inconsistent pairings before submission and suggests compliant alternatives, preventing this common denial at the source.
The patient's plan requires a referral from their PCP before seeing a specialist, and no referral was on file at the time of service.
Synaipse tracks referral requirements by payer and plan type. When a patient is scheduled without a required referral, the system automatically contacts the PCP's office to obtain one or alerts your staff to do so before the visit.
The diagnosis code does not support or justify the procedure code billed, often due to a mismatch between the clinical condition and the service rendered.
Synaipse's Coding Agent validates every diagnosis-procedure combination against NCCI edits and payer rules before submission. When mismatches are found, it suggests the most appropriate diagnosis code from the patient's chart and corrects the claim automatically.
The claim was missing required data fields such as referring provider NPI, place of service, or patient demographics needed for the payer to process it.
Synaipse's Billing Agent runs a comprehensive pre-submission audit on every claim, checking for over 200 common data gaps. Missing fields are auto-populated from the EHR when possible, or flagged for staff review before the claim is sent.
The service was bundled with another procedure under payer rules, meaning separate payment is not allowed because it's considered part of a more comprehensive service.
Synaipse's Coding Agent checks CCI bundling rules and payer-specific edits before submission. When bundling conflicts are detected, it recommends appropriate modifier usage (such as modifier 59) or restructures the claim to maximize legitimate reimbursement.
The claim contains a billing or formatting error that the payer cannot resolve without additional information, often a missing or invalid field on the CMS-1500 or UB-04 form.
Synaipse's Billing Agent validates claim forms against payer-specific formatting requirements before submission. It catches errors like invalid taxonomy codes, missing NPI numbers, and incorrect place-of-service codes, reducing rejection rates by up to 85%.
The CPT or HCPCS code used has been deleted, replaced, or was not yet effective on the date the service was provided.
Synaipse's Coding Agent maintains an up-to-date code database that reflects annual CPT updates, quarterly HCPCS changes, and payer-specific code lists. It automatically flags outdated codes and suggests valid replacements before claim submission.
The payer requires additional documentation such as operative notes, lab results, or medical records to process the claim, but they were not included with the submission.
Synaipse's Documentation Agent identifies payer-specific attachment requirements before claim submission. It automatically pulls relevant documents from the EHR and attaches them to the claim, or alerts staff when manual document retrieval is needed.
The patient has multiple insurance plans and the claim was sent to the wrong payer, or coordination of benefits information is missing or incorrect.
Synaipse's Eligibility Agent automatically checks for secondary and tertiary coverage during eligibility verification. It determines the correct payer order and routes claims appropriately, preventing COB denials and ensuring maximum reimbursement across all plans.
The date of service falls before the patient's insurance coverage effective date, meaning the plan was not yet active when the service was rendered.
Synaipse's Eligibility Agent verifies coverage effective dates in real time at scheduling and check-in. When a service date precedes coverage, staff is immediately notified to collect self-pay or reschedule, avoiding write-offs from pre-coverage denials.
The patient is responsible for this portion of the charge because their annual deductible has not been met. This is a patient responsibility adjustment, not a true denial.
Synaipse's Patient Billing Agent calculates remaining deductible amounts before the visit using real-time benefits data. It enables front desk staff to collect estimated patient responsibility at check-in, improving collections and reducing accounts receivable days.
The patient owes a percentage of the allowed amount as their coinsurance obligation under their plan. This is a patient responsibility, not a payer denial.
Synaipse's Patient Billing Agent calculates coinsurance amounts based on real-time benefits verification and generates accurate patient estimates before the visit. After adjudication, it automatically generates and sends patient statements for any remaining balance.
The patient owes a fixed co-payment amount for this visit or service as defined by their insurance plan. This is collected at the time of service.
Synaipse's Patient Billing Agent looks up exact co-pay amounts during eligibility verification and displays them to front desk staff at check-in. It tracks collected vs. owed amounts and automates patient balance reminders for any uncollected co-pays.
The claim was submitted after the payer's filing deadline, which typically ranges from 90 days to one year depending on the payer and contract.
Synaipse's Billing Agent tracks filing deadlines for every payer and prioritizes claims approaching their limit. It sends automated escalation alerts at 30, 15, and 7 days before deadline, and ensures clean claims are submitted well within the filing window.
The required notification to the patient or insured party was not provided within the payer-mandated timeframe, resulting in denial of the claim.
Synaipse's Compliance Agent tracks notification requirements across payers and automatically generates required patient notices. When denial occurs, the Appeal Agent documents the timeline and submits proof of timely notification if available, or identifies process gaps to prevent recurrence.
The claim was assessed a late filing penalty or adjustment, typically reducing the allowed amount due to late submission even if the claim was ultimately accepted.
Synaipse prevents late filing penalties by submitting claims within 48 hours of service completion. Its priority queue system ensures that no claim sits idle, and automated status tracking catches any submission failures that could lead to late filing.
An identical claim with the same patient, date of service, procedure code, and provider was already submitted and processed by the payer.
Synaipse's Billing Agent maintains a complete submission history and checks every outgoing claim against previously submitted ones. It blocks true duplicates from being sent while identifying legitimate resubmissions that need corrected information, preventing both duplicate denials and lost revenue.
The payer determined the service is related to a work injury and should be billed to the worker's compensation carrier instead of the health insurance plan.
Synaipse's Eligibility Agent flags work-related diagnoses and injury codes during pre-submission review. When worker's comp liability is identified, it automatically redirects the claim to the correct carrier and ensures proper billing forms are used.
The payer identified this as an exact duplicate of a previously processed claim. The OA group code indicates it is a non-contractual adjustment rather than a contractual obligation.
Synaipse's Billing Agent cross-references all outgoing claims against the payer's remittance history. When an OA-18 is received, the system automatically verifies whether the original claim was paid correctly and alerts staff only if the original payment is missing or underpaid.
The services were denied because they were rendered after the patient was officially discharged, or the charges overlap with services already included in the discharge billing.
Synaipse's Billing Agent validates service dates against admission and discharge records to prevent post-discharge billing errors. It separates inpatient from outpatient charges and ensures each claim accurately reflects the service timeline, eliminating discharge-related denials.
Synaipse's AI agents prevent denials before they happen and automatically appeal the ones that get through. See how much revenue your practice is leaving on the table.
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