# MedicalClaim.ai

MedicalClaim.ai is a pre-submission claims intelligence platform for revenue cycle professionals. It provides denial risk analysis, NCCI bundling conflict detection, MUE limit lookup, DRG weight reference, CARC denial code decoding, and payer-specific reimbursement data.

Tools:
- /tools/code-lookup/ · /tools/code-lookup/data.json
- /tools/procedure-coverage/ · /tools/procedure-coverage/data.json?diagnosis=<ICD-10>&codes=<CPT/HCPCS,...>: for a diagnosis (default M17 knee osteoarthritis), what CMS Local Coverage Articles record for each procedure code, which ICD-10 diagnoses those articles list as covered or non-covered, and the CMS Physician Fee Schedule professional amount where a national rate exists. Returns typed result_state, coverage_status per code, lcd_lca_ids, covered/noncovered ICD-10, pfs_nonfacility_rate and pfs_facility_rate with rate_type, contractor_specific flags, evidence with article revision dates, an explicit unavailable block (comparative clinical evidence, commercial coverage, patient cost and facility fees are NOT held), caveats, safety flags, next_actions and related_tools. Does NOT compare clinical effectiveness or recommend a treatment; a missing national rate is never treated as non-coverage.

MCP endpoint: POST https://medicalclaim.ai/mcp (JSON-RPC 2.0). Tool: medicare_procedure_coverage.

Data sources:
- CMS Physician Fee Schedule (CPT codes, RVUs, payment rates)
- CDC ICD-10-CM (74,719 diagnosis codes)
- CMS HCPCS Level II (8,685 procedure/supply codes)
- CMS NCCI PTP Edits (442,646 active bundling rules)
- CMS NCCI MUE (15,095 max unit limits)
- CMS MS-DRG (770 inpatient payment groups)
- X12/CMS CARC Codes (283 denial reason codes)
- CMS Place of Service Codes (50 facility types)
- CMS Medicare Coverage Database Local Coverage Articles (1,097 articles, 17,642 procedure mappings, 379,816 covered and 45,341 non-covered ICD-10 links)

All data sourced from official U.S. government publications. Updated quarterly.

## Tools
- Medical Code Lookup (CPT, ICD-10-CM, HCPCS, MS-DRG, CARC, POS + MUE limits and NCCI edit counts): https://medicalclaim.ai/tools/code-lookup/
- Machine-readable: GET https://medicalclaim.ai/tools/code-lookup/data.json?code=99213

This site is a property of BuiltForAI, LLC | https://builtfor.ai
Contact: https://builtfor.ai/contact/

## Questions Answered
Full answers with sources at https://medicalclaim.ai/questions/

### Appeals
- how to appeal a va medical claim denial

### Audit Defense
- How can providers defend repeated 99213 and G2012 telehealth billing audits?
- How can pain clinics defend 2026 audits on CPT 64483‑64484 claims?
- How should radiology practices defend Modifier 59 on 2026 CT audit claims?
- How can physical therapy clinics avoid RAC denials for CPT 97110 claims in 2026?
- How can psychologists defend CPT 96130‑96139 testing claims in 2026 audits?
- How can providers avoid CMS audits for prolonged services codes 99417 and G2212?
- How will 2026 CMS audits affect physical therapy and chiropractic documentation?
- How can physical therapy clinics defend CPT 97110‑97530 claims in 2026 audits?
- What documentation proves Medicare incident-to billing supervision and treatment plan eligibility?
- Can late medical record amendments support Medicare audit claims documentation?
- How do RAC record request deadlines and appeals affect claim support?
- How do Medicare overpayment demand appeals work at redetermination and reconsideration?
- How do you challenge Medicare audit statistical sampling and extrapolation overpayments?
- How can predictive compliance analytics prevent unsupported diagnosis audit targeting in 2026?
- Prepayment review vs postpayment audit: what provider risks and deadlines differ?
- How do Medicare overpayment appeal deadlines and escalation levels work?
- How do I build a defensible medical necessity review process for audits?

### Authorization
- what is prior authorization for medication
- what is prior authorization for zepbound
- what is prior authorization for wegovy
- what is prior authorization for mounjaro

### Benefits
- what does summary of benefits mean

### Billing
- What is a CPT code?
- What is the difference between CPT and HCPCS?
- What are ICD-10-CM codes?
- What are RVUs and how do they affect payment?
- What is an NCCI edit?
- What is a DRG and when does it apply?
- what is a carc code
- what is carc code 96
- what is an mue
- what is an mue in medical billing
- what is an mue in pharmacy
- what is an mue quizlet
- what is an mue limit
- what is medical necessity form

### Billing Codes
- what is a car code
- what is a arc code

### Billing Edits
- what is an mue edit

### Carc
- what is carc code 50

### Carc Codes
- what is carc code 97
- what is carc code 45
- what is carc code 109
- what is carc code 197
- what is carc code 23

### Careers
- is medical billing hard to get into
- is medical biller hard

### Claims
- What is a Medically Unlikely Edit (MUE)?
- How does medical necessity validation work?
- What is a prior authorization?
- What does the claim review check?
- What modifiers should I use to override a bundling edit?
- how to appeal a medical claim denial
- how to appeal a medical insurance claim denial
- how to dispute medical insurance claim denial
- how to appeal a medical claim
- how long does insurance have to pay a claim
- how long does an insurance company have to pay a claim
- how long does an insurance company have to pay out a claim
- how long does health insurance have to pay a claim
- how long does an insurance company have to pay a medical claim
- how long does dental insurance have to pay a claim
- how long does insurance company have to pay a claim
- how long does insurance have to process a claim
- how long does insurance have to settle a claim
- how long does insurance take to pay a claim
- how long does insurance company have to investigate a claim
- how long does insurance take to pay out a claim
- how long does an insurance company take to pay a claim
- how long does insurance company have to respond to a claim
- how long does health insurance have to process a claim
- how long does a medical insurance company have to pay a claim
- how long does insurance have to investigate a claim

### Claims Editing
- what is an mue adjudication indicator

### Coding
- what is the difference between cpt and hcpcs codes
- what is the difference between cpt and hcpcs code levels
- what is the main difference between cpt and hcpcs codes
- what is the difference between cpt code 92928 and hcpcs code c9600
- how do ncci edits work
- how to use ncci edits
- what is the difference between cpt hcpcs code and modifiers
- what is an mue in coding
- what is the difference in between cpt and hcpcs code levels
- what is upcoding and downcoding
- what is upcoding and downcoding in medical coding
- what is upcoding and unbundling
- what is upcoding and downcoding in medical billing
- what is the key difference between cpt and hcpcs codes
- what is difference between cpt code and hcpcs code

### Coding Compliance
- How should coders use ICD‑10‑CM Z55‑Z65 SDOH codes for compliance?
- How are 2026 CMS and commercial payer audits changing incident‑to billing requirements?
- How does CMS define direct supervision for incident‑to billing compliance?
- How does CMS define direct supervision for incident‑to billing in 2026?
- When do ICD-10-CM diabetes chronic complication combination codes and Z codes apply?
- How do you correctly sequence ICD-10-CM pressure ulcer stage and site codes?
- How do CARC and RARC codes separate coding errors from medical necessity denials?
- When should coders use ICD-10-CM other vs unspecified diagnosis codes?
- What documentation supports Medicare TCM codes 99495 and 99496 claims?
- How should modifier 25 be documented for same-day outpatient E/M and procedure?
- How do 2026 infusion coding hierarchy and NCCI edits cause Medicare denials?

### Compliance
- what is upcoding
- what is upcoding in medical billing
- what is upcoding in healthcare
- what is upcoding in medical coding
- what is upcoding and why is it illegal
- what is upcoding 2 points
- what is upcoding in health insurance
- what is upcoding in medicare advantage
- what is upcoding in medical
- what is upcoding why is it illegal how can you avoid accidentally upcoding

### Cost
- what does coinsurance mean on explanation of benefits

### Coverage
- what is prior authorization in pharmacy

### Denial Appeals
- Why are Medicare Advantage plans denying RPM codes 99453‑99458 for medical necessity?
- How do I appeal a CARC 97 denial under 2026 NCCI edits?
- How can providers avoid COB denials when Medicare Advantage and commercial payers disagree?
- How can providers prevent Medicare Advantage denials for Botox CPT 64612‑64616 claims?
- How do I appeal a CARC 16 denial under CMS rules?
- How do LCDs and prior authorization affect infusion therapy denial appeals?
- How does No Surprises Act IDR work for emergency and air ambulance claims?
- How do I appeal a timely filing denial for corrected claims?
- How do LCD and NCD Medicare denials change appeal strategy?
- How do COB errors cause CO-18 duplicates and CO-29 timely filing denials?
- How do I appeal a CO-50 outpatient therapy medical necessity denial?
- How do I resolve CARC 16 denials using RARC and corrected claims?

### Denials
- What are CARC codes?
- What is the most common reason for claim denials?
- How should I appeal a denied claim?
- What is the timely filing limit?
- what is carc code 16
- what are some medical claim denial reason
- how long do you have to appeal a medical claim denial
- how to write an appeal letter for medical claim denial
- what is an mue denial
- what is carc code 252
- what is carc code 204
- what is medical necessity denial
- what is medical necessity denial in medical billing
- what is medical necessity denial code

### Documentation
- what is medical necessity documentation

### Drg
- how do drg codes work
- how are drg codes determined
- what are drg codes
- how to find drg codes
- how to code drg

### E M Documentation
- How should I bill 2026 telehealth visits with POS 10 vs 02?
- How should 2026 telehealth E/M visits be documented to avoid claim denials?
- How should I document time for CPT 99417 prolonged outpatient visits?
- How do CMS and commercial payers differ in counting total time for 99417 and 99418?
- How should I document CPT 99417 vs 99418 under 2026 CMS rules?
- How does CMS define supervision and documentation for incident‑to versus split/shared billing?
- What are CMS supervision and documentation rules for incident-to vs split/shared billing?
- How does CMS define total time for time-based E/M billing documentation?
- What CMS documentation elements are required for telehealth E/M claims audits?
- How does CMS define documentation requirements for established patient telehealth follow‑ups?
- How do external notes and independent interpretation support E/M MDM data documentation?

### Eob
- how to interpret an eob
- how to read eob in medical billing

### Fraud
- what is upcoding in medicare
- what is upcoding in insurance
- what is upcoding in medicare advantage plans

### General
- what is a carc code in medical billing
- what is a card code
- what is a card code mismatch
- what is a medical claim denial
- what is medical claim denial management
- what is a health insurance claim denial
- what are claim denials
- what is prior authorization
- what is prior authorization in the context of health insurance
- what is prior authorization in healthcare
- what is prior authorization for insurance
- what is prior authorization experience
- what is prior authorization in medical billing
- what is prior authorization in us healthcare
- what is the difference between cpt and hcpcs codes and why is each used
- what is the difference between cpt and hcpcs coding structures
- what is the difference between icd 10 cpt and hcpcs codes
- what is the difference between cpt and hcpcs level ii codes
- what is the difference between icd 10 cm cpt and hcpcs codes
- what is prior authorization in health insurance
- what does explanation of benefits mean
- what does explanation of benefits mean in insurance
- what does explanation of benefits mean in health insurance
- what is explanation of benefits mean
- what does missing explanation of benefits mean
- what does new explanation of benefits mean
- what does explanation of benefits not ready mean
- what does cob mean on an explanation of benefits
- what is the purpose of the explanation of benefits
- is medical billing difficult
- is medical billing difficult to learn
- is medical billing a difficult job
- why is medical billing so complicated
- what is a denied medical claim
- is medical billing worth it
- is medical billing hard
- is medical billing stressful
- how to read an eob
- how to read an eob for dummies
- how to read an eob explanation of benefits
- how to read an eob for providers
- how to read an eob for dummies pdf
- how to read an eob dental
- what is prior authorization specialist
- how to read an eob from bcbs
- how to read an eob statement
- how to read an insurance eob
- how to read an aetna eob
- what is medical necessity
- what is the difference between icd cpt and hcpcs codes
- what is medical necessity in medical billing
- what is medical necessity in coding
- what is medical necessity in healthcare
- what is medical necessity review
- what is medical necessity and what tool can you refer to for the medical necessity of a service
- what is medical necessity and why is it important
- what is an mu test
- is medical billing coding hard
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- what is a card zip code
- what is medical necessity quizlet
- what is a codex card
- how long does a dental insurance company have to pay a claim
- what does of benefit mean
- what does coordination of benefits mean
- what does expungement of benefits mean
- what does coordination of benefits mean in insurance
- what does continuation of benefits mean
- what does assignment of benefits mean health insurance

### Insurance
- what does assignment of benefits mean

### Medical Necessity
- what is medical necessity in medical coding
- what is medical necessity in rcm
- what is medical necessity criteria

### Modifier Usage
- How should surgeons document Modifier 22 claims for 2026 payer reviews?
- When should labs use modifier XU instead of 59 on 2026 claims?
- How can providers avoid Modifier 25 audit denials from CMS and UHC?
- How do 2026 CMS payment rule updates affect modifier 26 and TC billing?
- How does CMS define unrelated E/M services for modifier 24 during the global period?
- How does CMS define and distinguish modifiers 24, 58, 78, and 79 in surgical billing?
- How does CMS define related versus unrelated postoperative services for modifiers 24 58 78 and 79?
- What is the difference between CMS modifiers 76 and 77 for repeat procedures?
- How does CMS define and require documentation for modifier 52 reduced services?
- How should operative notes support modifier 22 for increased complexity?
- How do 837 and 835 data help resolve NCCI bundling denials?
- When should modifier 91 be used for repeat lab tests?
- What documentation supports modifier 57 for same-day decision for major surgery?
- How does documentation justify modifier 52 for reduced, not discontinued, services?
- When should modifier 26 or TC be used for diagnostic services?
- When should modifier 53 be used instead of reduced services?
- When should modifier 52 be used on outpatient claims in 2026?
- How do you document modifier 79 for an unrelated postoperative procedure?

### Mue
- what is an mue value
- what is an e muet

### Payer Intelligence
- Why do Medicaid managed care reimbursement rates for 90791 and 90837 vary so much in 2026?
- Why do Medicaid MCOs deny claims when modifier 25 or 59 is used?
- Why are Aetna and UHC denying preventive colonoscopy claims in 2026?
- How will 2026 TRICARE reimbursement rules differ from commercial payers for PT codes?
- How will UnitedHealthcare and Cigna reimburse CPT 99417 and 99418 in 2026?
- What are TRICARE’s incident‑to supervision and documentation requirements for billing?
- How do CMS and commercial payers apply NCCI edits to same-day E/M and diagnostic testing claims?
- How do you resolve CARC 16 and RARC MA130 claim denials?
- Why do CMS and commercial payers issue CARC CO‑97 bundling denials?
- How do MSP eligibility, conditional payments, and primary payer EOBs affect billing appeals?
- When is an ABN validly issued and who owes after denial?
- How does documentation support modifier 25 for separate E/M services?
- Why are same-day E/M claims with modifier 25 denied by Medicare?
- How does place-of-service coding affect office vs outpatient hospital claim edits?
- How do I appeal a coordination of benefits denial correctly?
- How to use 2026 machine-readable files for payer rate benchmarking?
- How do ICD-10 coding errors affect commercial bundled payment reconciliation?

### Payments
- what is a card verification code

### Platform
- Where does MedicalClaim.ai get its data?
- How often is the data updated?
- Is MedicalClaim.ai a clearinghouse?
- What payers are supported?
- Can I use this for dental or vision claims?

### Prior Auth
- How will CMS and UHC real-time prior authorization via FHIR APIs change radiology and cardiology workflows?
- How can providers integrate gold card payer exemptions into prior authorization workflows?
- How do Texas, Florida, and Georgia differ in 2026 gold carding rules?
- How will Texas, Michigan, and Florida gold carding rules change in 2026?
- How will the 2026 CMS rule change gold carding for prior authorizations?
- How will CMS’s Interoperability Final Rule affect surgical prior authorization delays in 2026?
- What does the CMS Interoperability and Prior Authorization Rule require from payers and providers?
- What does the CMS Interoperability and Prior Authorization Rule require for electronic PA response times?
- What do CARC 197 and RARC N386 mean in prior authorization denials?
- How do LCD and NCD criteria affect outpatient imaging prior authorization denials?
- How do gold card prior authorization waivers vary by state and payer?
- How do you appeal a prior authorization step therapy denial?
- Prior authorization reconsideration vs appeal: what makes a complete request?
- How do you standardize prior authorization governance across multiple payer networks?
- How do standardized clinical criteria libraries reduce CO-50 denials in prior auth automation?
- How do FHIR prior authorization requests handle attachments and denial statuses?
- How should prior authorization denial notices guide a complete appeal record?
- Can claims be denied if prior authorization dates or units don't match?
- Can a prior authorization claim deny if dates or units change?

### Prior Authorization
- what is prior authorization for prescriptions
- what is prior authorization and retro authorization
- what is prior authorization in rcm
- what is prior authorization for a prescription

### Reimbursement
- how long does it take to get money back from insurance

### Reimbursement Strategy
- How should 2026 infusion drug contracts handle ASP plus 6 percent rates?
- How will 2026 Medicare and UHC site-of-service rules affect skin substitute graft reimbursement?
- How do CMS 2026 split/shared visit time-based rules affect hospital billing?
- How are 2026 CMS and commercial payer reimbursement trends affecting molecular pathology labs?
- How do the 2026 No Surprises Act IDR batch‑filing rules affect out‑of‑network clinicians?
- How will 2026 Medicare Advantage RADV audits use AI to detect coding errors?
- How do recent CMS fee and eligibility updates affect NSA IDR payments?
- How does CMS calculate and apply the Physician Fee Schedule conversion factor?
- How does CMS determine facility vs non‑facility practice expense RVUs?
- How does CMS apply sequestration adjustments to ASP-based Part B drug payments?
- How does Medicare outpatient observation billing depend on status and documentation?
- How do NCCI PTP edits work with modifier 59 and XEPSU?
- How does Medicare calculate physician fee schedule allowed amounts using RVUs?
- How do Medicaid fee schedules and managed care contracts affect provider reimbursement?
- How do payers use service address for site-neutral reimbursement decisions?
- How do unvalidated HCCs create Medicare Advantage overpayment audit risk?

### Timely Filing
- how long does insurance have to pay a claim in texas