End-to-end GI billing for Nevada practices and endoscopy centers — colonoscopy, EGD, ERCP, EUS and infusion claims coded precisely.
Nevada Medical Billing Services provides end-to-end gastroenterology billing services for Nevada GI practices and endoscopy centers, from screening-benefit checks and CPT coding to denial recovery and A/R follow-up. Our certified GI coders bill colonoscopy, EGD, ERCP, EUS and infusion claims precisely, targeting a 95%+ clean claim rate and under 35 days in A/R. Full reimbursement for your team, no surprise bills for your patients.
HIPAA compliant · Signed BAA · No obligation
95%+
clean claim rate target
<35
days in A/R
HIPAA
compliant with signed BAA
Monthly
month-to-month, no long-term contract
Gastroenterology billing services are specialized revenue cycle services for GI practices and endoscopy centers. They cover eligibility and screening-benefit verification, prior authorization, CPT and ICD-10-CM coding, claim submission, payment posting, denial management and A/R follow-up for procedures such as colonoscopy, upper endoscopy (EGD), ERCP, capsule endoscopy and IBD infusions.
Nevada Medical Billing Services runs that entire cycle for Nevada gastroenterologists, so every scope you perform turns into revenue you actually collect.
Gastroenterology looks routine from the outside: high volume, familiar procedures, predictable days. Behind each scope, though, sits a chain of coding decisions that general billers routinely get wrong. Each small miss repeats across hundreds of cases a month.
When a screening colonoscopy finds and removes a polyp, the claim must be recoded as diagnostic while keeping its screening status. Miss modifier PT for Medicare or modifier 33 for commercial plans, and your patient receives a bill they were told would never come. That costs you revenue and, worse, trust.
When several colonoscopy or EGD services happen in one session, payers apply family-based reduction rules rather than paying each code in full. Ordering codes incorrectly or misusing modifiers 51, 59 or XS leaves money on the table on nearly every multi-procedure case.
Biopsy forceps, cold snare, hot snare, ablation and EMR each map to a different CPT code. If the procedure note does not state technique, size and location, the coder cannot support the higher-value code, and the claim is underpaid or denied.
A single colonoscopy can generate a physician claim, an anesthesia claim, a pathology claim and an ASC facility claim. If diagnoses and modifiers do not match across all four, payers deny the weakest link and patients receive confusing statements.
Average-risk screening is limited to once every 10 years, while high-risk patients qualify every 24 months under Medicare. Capsule endoscopy, EUS and biologic infusions often need prior authorization. One unchecked rule turns into a CO-119 or CO-197 denial.
This single distinction drives more GI denials, write-offs and patient complaints than any other. We treat it as a dedicated workflow, not an afterthought.
| Scenario | Medicare | Commercial plans | What we verify |
|---|---|---|---|
| Average-risk screening, no findings | G0121 with Z12.11 | 45378 with modifier 33 and Z12.11 | Age 45+, 10-year interval |
| High-risk screening (history of polyps or family history) | G0105 with history or family-history code | 45378 with modifier 33 | 24-month interval for Medicare, risk documentation |
| Screening converts to biopsy or polypectomy | Therapeutic CPT (45380, 45385) with modifier PT; Z12.11 first-listed | Therapeutic CPT with modifier 33 | Diagnosis sequencing; patient cost-share explained in advance |
| Follow-up colonoscopy after a positive stool test (FIT, Cologuard) | Billed as screening, no cost-sharing (since 2023) | Covered as preventive under ACA guidance | Prior stool-test result documented |
| Symptom-driven colonoscopy (bleeding, anemia, change in habits) | Diagnostic CPT with symptom ICD-10 | Diagnostic CPT, plan cost-sharing applies | Medical necessity in the note |
Medicare coinsurance on screenings that turn therapeutic is 15% in 2026, falling to 10% in 2027 and 0% in 2030. We build that into patient estimates so no one is caught off guard.
One accountable team owns your GI revenue cycle end to end, so nothing slips between handoffs.
We verify coverage, screening eligibility, last-colonoscopy dates and authorization requirements 48-72 hours before every procedure, then secure approvals for capsule studies, EUS and biologics.
CPC and CGIC-certified coders assign CPT, ICD-10-CM and HCPCS codes with the right modifiers, endoscopy family logic and diagnosis sequencing on every claim.
Charges are entered within 24-48 hours of a signed procedure note and scrubbed against NCCI, MUE, frequency and payer-specific edits before they leave.
We align physician, anesthesia, pathology and facility claims so diagnoses, modifiers and dates match across every bill for the same encounter.
ERAs and EOBs are posted daily and compared against your contracted rates. Underpaid endoscopy claims are appealed, not accepted.
Every denial is worked within 48 hours, root-caused and fixed upstream so the same error does not repeat next month.
Clear statements, upfront cost estimates for screenings that may turn diagnostic, and friendly payment plans keep your online reviews about care, not billing.
We handle CAQH, PECOS, Noridian, Nevada Medicaid and commercial enrollment, then report clean claim rate, denial rate, days in A/R and collections per procedure every month.
| Service line | Procedures we bill | Common CPT / HCPCS families | Main billing risk we manage |
|---|---|---|---|
| Colonoscopy | Screening, diagnostic, biopsy, snare polypectomy, ablation, EMR, dilation, stent | G0105, G0121, 45378-45398 | Screening conversion, technique-specific codes, family reductions |
| Upper endoscopy (EGD) | Diagnostic EGD, biopsy, dilation, banding, bleeding control, PEG | 43235-43259 | Same-session EGD + colonoscopy, dilation code selection |
| ERCP and EUS | Sphincterotomy, stone extraction, stents, FNA/FNB | 43260-43278, 43237-43242, 43259 | Multi-component procedures, device and add-on capture |
| Flexible sigmoidoscopy | Screening and diagnostic | G0104, 45330-45350 | Screening frequency, conversion modifiers |
| GI diagnostics | Capsule endoscopy, esophageal manometry, pH monitoring, breath tests, liver elastography | 91110-91113, 91010-91038, 91065, 91200 | Prior authorization, 26/TC split |
| Anorectal procedures | Anoscopy, hemorrhoid banding | 46600-46615, 46221 | Global periods, office vs ASC place of service |
| IBD and infusion care | Biologic infusions, drug administration | 96365-96417, J-codes (e.g., J1745, J3380) | Prior auth, drug units, NDC reporting |
| Anesthesia and sedation | MAC for endoscopy, moderate sedation | 00731-00732, 00811-00813, 99152-99153 | Screening modifiers on anesthesia claims, time reporting |
Code families are representative; every claim is coded to the current-year CPT and CMS rules.
Most gastroenterology denials are predictable, which means they are preventable.
| Denial code | What it means | Typical GI trigger | How we prevent it |
|---|---|---|---|
| CO-50 | Not medically necessary | Diagnostic EGD or colonoscopy without a supporting symptom code | ICD-10 linkage checked against LCDs and payer policy |
| CO-119 / CO-151 | Frequency or benefit maximum reached | Screening repeated inside the 10-year or 24-month window | Last-procedure date verified at scheduling |
| CO-4 | Modifier missing or invalid | PT or 33 missing on converted screenings; 59/XS misused | Modifier validation by a certified GI coder |
| CO-97 | Bundled service | Biopsy and snare on the same lesion; sedation bundled | NCCI scrub and documented separate lesions |
| CO-197 | Prior authorization missing | Capsule endoscopy, EUS or biologic infusion | Auth secured and tracked before the date of service |
| CO-11 | Diagnosis inconsistent with procedure | Screening Z-code missing or sequenced second | Screening diagnosis sequencing rules applied |
| CO-16 | Missing information | Pathology, NDC or referring provider absent | Pre-submission documentation checklist |
No migration, no new software, no lost procedure days. Our team works directly in your EHR and practice management system under a signed BAA, including gMed (gGastro), ModMed Gastroenterology, Provation, Epic, eClinicalWorks, athenahealth, NextGen and AdvancedMD. We reconcile scheduled procedures against signed notes and billed claims daily, so no scope goes unbilled.
Free GI billing audit: We review 90 days of claims, denials, screening conversions and A/R to pinpoint revenue leakage.
Onboarding in 2-3 weeks: EHR access, payer setup, fee schedule review and a dedicated account manager.
Front-end protection: Eligibility, screening intervals and prior authorization verified before every procedure.
Precision coding: Certified GI coders code from signed procedure and pathology reports within 24-48 hours.
Clean submission: NCCI, MUE, frequency and payer edits, then electronic submission.
Posting and follow-up: Daily posting, underpayment checks and A/R follow-up by aging bucket.
Denials, appeals and reporting: Root-cause fixes and a monthly KPI review with your team.
National vendors treat Nevada as a dropdown option. We bill Nevada payers every working day.
We follow Noridian's coverage policies for diagnostic endoscopy, capsule studies and screening frequency, plus Medicare Advantage plans with their own authorization rules.
We manage Nevada Medicaid fee-for-service and managed care claims, eligibility changes and plan-specific authorization requirements.
Anthem Blue Cross Blue Shield Nevada, Health Plan of Nevada and UnitedHealthcare, Prominence Health Plan, Hometown Health, Aetna, Cigna and TRICARE.
Las Vegas, Henderson, Summerlin, North Las Vegas, Reno, Sparks and Carson City, supported on Pacific Time during your clinic hours.
| Factor | In-house billing team | Nevada Medical Billing Services |
|---|---|---|
| Cost | Salaries, benefits, training, software, turnover | One percentage of collections; we earn only when you are paid |
| GI coding expertise | Often one generalist biller | Certified GI coders (CPC, CGIC) |
| Screening conversion accuracy | Learned through denials | Dedicated screening-to-diagnostic workflow |
| Coverage during PTO or turnover | Billing stalls | Continuous, with backup billers |
| Denial follow-up | When time allows | Within 48 hours, root-caused |
| Reporting | Manual and inconsistent | Monthly KPI dashboard and review call |
Reclaim your evenings. We become your full billing department for less than the cost of one in-house biller.
Provider-level reporting, consistent coding across physicians and one point of contact for every location.
Facility claim coordination, high-volume authorization management and place-of-service accuracy.
Biologic infusion billing, drug unit and NDC accuracy, and prior authorization tracking for long-term therapy.
Every coder on your account holds AAPC credentials (CPC or CGIC) and codes gastroenterology every day.
We run your account to a 95%+ clean claim rate, 96-99% net collection rate, denial rate under 5% and fewer than 35 days in A/R. GI practices moving from generalist billing to specialists commonly see collections rise 10-15% within six months.
One named contact, a direct line and a monthly review call. No ticket queues, no guessing.
Signed BAA, role-based access, encrypted systems and pre-bill audits that keep you ready for payer or OIG review.
Month-to-month with 30 days' notice. We keep your business by performing, not by locking you in.
Our pricing is a percentage of collections, typically 4-7% for GI practices, based on claim volume, payer mix and the services you need. No setup fees, no hidden charges, and you pay only on money we collect. We confirm your exact rate after a free audit.
HIPAA compliant · Signed BAA · No obligation
In a free 30-minute audit, we review your denials, screening conversions, A/R aging and coding patterns, then show you what is leaking and what it is worth to recover.
Free 30-minute review · No obligation · HIPAA compliant with signed BAA
Internal medicine billing servicesPrimary care billing servicesCardiology billing servicesOncology billing servicesGastroenterology billing services include eligibility and screening-benefit checks, prior authorization, CPT and ICD-10 coding, claim submission, payment posting, denial management, A/R follow-up and reporting. Nevada Medical Billing Services also coordinates anesthesia, pathology and ASC claims and handles credentialing.
GI billing is complex because one procedure can change from screening to diagnostic mid-scope, payers apply multiple-endoscopy reduction rules, and each polyp technique has its own code. A single colonoscopy can also produce four separate claims that must match.
Bill the therapeutic CPT code with the screening diagnosis (Z12.11) listed first, plus modifier PT for Medicare or modifier 33 for commercial plans. This keeps the screening benefit and limits the patient's cost-sharing.
G0121 is Medicare's screening colonoscopy code for average-risk patients, covered once every 10 years. G0105 is for high-risk patients, such as those with a personal history of polyps or a family history of colorectal cancer, covered every 24 months.
Outsourcing usually costs less than an in-house team once salaries, benefits, software and turnover are counted, and it brings certified GI coders. In-house can work for large groups with dedicated GI coders and stable staff.
Most GI billing companies charge a percentage of collections, commonly 4-7%, depending on volume, payer mix and services. Nevada Medical Billing Services confirms a flat percentage after a free audit, with no setup fees.
The most common GI denials are CO-50 (medical necessity), CO-119 or CO-151 (frequency limits), CO-4 (missing PT or 33 modifier), CO-97 (bundling) and CO-197 (missing prior authorization). Most are preventable with pre-submission checks.
Yes. We bill or coordinate anesthesia (00811-00813, 00731-00732) and pathology claims so diagnoses and screening modifiers match the physician claim, which prevents denials and confusing patient bills.
Yes. We manage prior authorization, drug administration codes, J-codes, drug units and NDC reporting for biologics such as infliximab and vedolizumab.
Yes. Our billers work directly in gMed, ModMed Gastroenterology, Provation, Epic, eClinicalWorks, athenahealth, NextGen and AdvancedMD. There is no data migration and no workflow disruption.
Yes. We bill Medicare through Noridian (Jurisdiction F), Medicare Advantage plans, Nevada Medicaid and its managed care plans, and Nevada commercial payers such as Anthem BCBS Nevada and Health Plan of Nevada.
Onboarding typically takes 2-3 weeks, including EHR access, payer setup and fee schedule review. We also work your existing A/R during the transition so no revenue is lost in the handover.