Workflow Intelligence · Free Template
Medicare Claims Processing Workflow: 837 Submission to Remittance
Medicare processes over 1.3 billion claims annually across Parts A and B. This workflow maps the complete Medicare fee-for-service claims cycle — from 837 electronic submission through MAC adjudication, HIPAA edit validation, and 835 remittance processing.
Statistics: CMS Medicare Claims Processing Manual, MedPAC Data Book 2024, CMS Annual Report 2024.
1.3BMedicare claims processed annuallyCMS 2024
14 daysElectronic claim payment timelineCMS Policy
10%Claims requiring additional reviewMedPAC 2024
$500B+Annual Medicare benefit paymentsCMS 2024
30K+Active CCI editsCMS NCCI
Workflow Map
Charge capture and coding
Clinical documentation translated into CPT, ICD-10, and HCPCS codes. Medicare-specific coding requirements include place of service, type of service, and modifier requirements.
ManualRiskAI Opportunity
Medicare-specific pre-billing edit review
Scrub claim against CMS Coverage Database, LCD/NCD policies, and Correct Coding Initiative (CCI) edits before submission. 30,000+ active CCI edits to check.
AutomatableAI Opportunity
837 electronic claim submission to MAC
Submit 837P (professional) or 837I (institutional) via clearinghouse to assigned Medicare Administrative Contractor. MACs process 90%+ of Medicare FFS claims.
Automatable
HIPAA front-end edit validation (999/277CA)
MAC validates HIPAA transaction syntax and returns 999 acknowledgment. 277CA claim acknowledgment follows. Rejected claims must be corrected and resubmitted.
RiskAutomatable
MAC claim adjudication
MAC applies coverage policies, fee schedule, and duplicate detection. Standard: 14 days electronic, 29 days paper. Complex claims routed to medical review.
Delay
Medical review and ADR
Claims selected for medical review require additional clinical documentation. Pre-payment review, post-payment review, and RAC audits. ADR response window: typically 45 days.
RiskManualBottleneck
835 Remittance Advice processing
MAC returns 835 ERA with payment amount, adjustment reason codes (CARCs), and remark codes (RARCs). PM system auto-posts and identifies denials and underpayments.
AutomatableAI Opportunity
Denial management and Medicare appeals
File appeals through Medicare's multi-level system: Redetermination → Reconsideration (QIC) → ALJ → Medicare Appeals Council → Federal Court. Time limits apply at each level.
RiskManualAI Opportunity
Customize this workflow with AI
Medicare coverage policies, LCD requirements, and MACs vary by state and claim type. Use PrAxIs to generate a tailored workflow map, SOP, and AI automation recommendations for your organization.
Open PrAxIs Free →Frequently Asked Questions
How long does Medicare take to process claims?
Medicare requires electronic claims to be paid or denied within 14 calendar days (29 days for paper). Clean electronic claims are typically processed in 7–10 days. Claims selected for medical review can take 45–90+ days.
What are the most common Medicare claim denial reasons?
Top Medicare denial reasons: (1) services not medically necessary per LCD/NCD, (2) CCI edit violations, (3) missing or incorrect diagnosis coding, (4) no documentation supporting level of service billed, (5) duplicate claim, (6) timely filing exceeded (1 year from date of service).
What is a Medicare Administrative Contractor?
MACs are private companies that process Medicare Part A and Part B claims under contract with CMS. Each MAC serves a geographic jurisdiction. There are currently 12 MACs: 7 for Part A/B and 5 for DME claims. MACs also handle redetermination appeals (Level 1).
What is the Medicare appeals process?
Five levels: (1) Redetermination by MAC (120-day filing limit), (2) Reconsideration by QIC (180-day limit), (3) ALJ hearing ($180 minimum in controversy), (4) Medicare Appeals Council, (5) Federal District Court.
How can providers reduce Medicare claim denials?
Pre-billing LCD/NCD compliance checks, real-time CCI edit validation, AI-assisted medical necessity documentation review, automated timely filing tracking, and denial root cause analysis by payer, provider, and code. Providers with automated pre-billing validation see 40–60% lower denial rates.