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Colorectal Surgery Billing Services Billing & RCM Services
Qualigenix codes and bills colonoscopy, anorectal surgery and colorectal resections for colon and rectal surgeons, endoscopy ASCs and surgical groups. Our CPC- and CCS-certified coders bill screening conversions so the patient keeps the screening benefit, code each polyp by removal technique, and track every global period.
What Colon and Rectal Surgery Billing Takes
Colon and rectal surgery billing depends on getting the screening colonoscopy right: correct screening codes, the PT or 33 modifier when a polyp is removed, and frequency checks before the procedure. On top of that come technique-specific polypectomy codes, 10- and 90-day globals on anorectal and resection cases, and authorizations for elective colectomy. Qualigenix handles this for colorectal practices in 48 states with a 98.2% first-pass clean claim rate on first submission. Call 786-259-0231 to review your screening and endoscopy denials with a specialist.
01
Polyp-Technique Coding
Colonoscopy codes follow the removal technique. A polyp removed by snare is 45385, one removed by hot biopsy forceps is 45384, a cold biopsy is 45380, and ablation is 45388. When polyps are removed by different techniques in one session, each technique is coded. When several polyps are removed by the same technique, that code is reported once. Medicare also applies the multiple endoscopy rule within the colonoscopy family, which reduces payment for the second and later codes, so the order and selection of codes changes what the claim pays.
02
Colectomy and Robotic Pre-Approval
Elective colectomies and rectal resections usually need commercial plan authorization, and inpatient stays need admission notification. Some commercial plans recognize HCPCS S2900 for robotic assistance and some don't. A case that is approved as laparoscopic but documented as robotic, or approved as outpatient and admitted, can lose payment on both the surgeon and facility claims.
03
Screening-to-Diagnostic Conversions
When a screening colonoscopy finds and removes a polyp, the claim has to show both facts. For Medicare, the therapeutic CPT code is billed with modifier PT and the screening diagnosis listed first. Medicare patients still pay coinsurance on a converted screening, but that coinsurance is being phased down: 15% for 2023 to 2026, 10% for 2027 to 2029, and zero from 2030, with the deductible waived. Commercial plans use modifier 33 to keep the service under preventive coverage. A colonoscopy after a positive stool-based test counts as completing the screening under Medicare and is billed with modifier KX. Leave off the modifier and the patient is billed as if no screening happened.
04
Anorectal Place of Service
Banding, anoscopy and some fistula and pilonidal procedures can be done in the office, an ASC or a hospital outpatient department. In the office (POS 11), the surgeon is paid the non-facility rate. In an ASC (POS 24) or hospital outpatient department (POS 22), the surgeon is paid the lower facility rate and the facility bills separately. A place-of-service error either underpays the surgeon or creates an overpayment.
05
Screening Eligibility Limits
Medicare covers a high-risk screening colonoscopy (G0105) once every 24 months, and an average-risk one (G0121) once every 10 years or 48 months after a screening sigmoidoscopy. Commercial plans cover average-risk screening from age 45, following the U.S. Preventive Services Task Force recommendation. A colonoscopy done before the patient is eligible again is denied as screening, and the patient gets a bill they weren't expecting.
06
Endoscopy Report Details
The endoscopy report has to support the codes. That means the indication (screening, surveillance or symptoms), the patient's risk status, prep quality, each polyp's location and size, and the removal method. A poor prep that forces an early repeat needs to be documented, or the repeat fails the frequency edit.
07
Screening Benefit Compliance
Screening errors land on the patient as well as the practice. Medicare waives the deductible and coinsurance for screening colonoscopy, and charges reduced coinsurance when a screening becomes therapeutic. Billing a screening as diagnostic, or the reverse, either overcharges the patient or misstates the service to the payer.
PRECISION: WHAT QUALIGENIX DOES
How Qualigenix Closes Colorectal Billing Gaps
Each gap above maps to a step in how Qualigenix verifies, codes and bills colorectal care.
Polypectomy Coding by Technique
Certified coders (CPC and CCS) code each colonoscopy from the endoscopy report: one code per removal technique, the correct sequence within the endoscopy family, and a query to the surgeon when polyp size, location or method is missing. Across all Qualigenix clients, coding accuracy is 98.9%.
Resection Authorizations
We submit authorization for elective colectomies, rectal resections and robotic cases with the clinical record attached, confirm the approach and setting on the approval match the plan, and send admission notifications for inpatient stays.
Screening Conversion Coding
We code every converted screening with the screening diagnosis first and PT for Medicare or 33 for commercial plans, and we bill follow-on colonoscopies after a positive stool test with KX. The patient keeps the screening benefit and the practice gets paid for the therapeutic work.
ASC, HOPD and Office Billing
We set place of service from where each procedure happened, so office procedures get the non-facility rate and ASC and hospital cases get the facility rate with the right modifiers.
CASE STUDY 01
How A Colorectal Surgery Practice Recovered $145K On Screening-to-Diagnostic Denials
THE SITUATION
Screening colonoscopies (45378/G0121) that converted to polypectomy (45385) were billed without modifier PT/33, so patients were wrongly charged cost-share and claims denied, while multiple-technique polyp removals missed modifier 59.
WHAT QUALIGENIX DID
Screening colonoscopies (45378/G0121) that converted to polypectomy (45385) were billed without modifier PT/33, so patients were wrongly charged cost-share and claims denied, while multiple-technique polyp removals missed modifier 59.
Key Outcomes & Turnaround
14% to 3.7%Denial Rate
14% to 3.7%Revenue Recovered
78% to 97%Clean Claim Rate
Modifier PT/33Coding Fix
Audited Practice Results
How A General Surgery Group Recovered $126K On Endoscopy AR Backlog
THE SITUATION
Endoscopy claims (45380/45385) aged after a biller vacancy, with moderate-sedation and pathology charges unbilled and timely-filing deadlines approaching.
WHAT QUALIGENIX DID
Endoscopy claims (45380/45385) aged after a biller vacancy, with moderate-sedation and pathology charges unbilled and timely-filing deadlines approaching.
Key Outcomes & Turnaround
Audited Practice Results
How A Gastrointestinal Surgical Center Recovered $98K On Robotic-Procedure Authorization
THE SITUATION
Elective robotic and resection procedures were scheduled before authorization, so high-dollar operative claims denied for missing auth and inpatient-admission approval.
WHAT QUALIGENIX DID
Elective robotic and resection procedures were scheduled before authorization, so high-dollar operative claims denied for missing auth and inpatient-admission approval.
Key Outcomes & Turnaround
Audited Practice Results
Frequency Checks Before Procedures
Before each screening colonoscopy, we check the patient's last screening date, risk status and plan rules, and tell your scheduling team about anyone who isn't yet eligible for a screening-covered procedure.
Report-to-Claim Review
A coder compares each endoscopy and operative report with the codes before release. Missing indications, prep quality or polyp details go back to the surgeon as a query.
COMPLIANCE
How We Keep Colorectal Billing Compliant
Qualigenix keeps colorectal billing compliant by applying Medicare's screening frequency and age rules, using PT and 33 correctly when a screening becomes therapeutic, billing follow-on colonoscopy after a positive stool test as completion of screening, and sequencing codes within each endoscopy family under NCCI and the multiple endoscopy rule.
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Audit Pass Rate
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Variance Threshold
Why Colorectal Surgeons Choose Qualigenix
Medicare's own error data puts a number on colonoscopy billing mistakes.
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Improper payment rate, colonoscopy
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Projected improper payments, colonoscopy
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Qualigenix first-pass clean claim rate on first submission
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Qualigenix coding accuracy
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Denials overturned, of denials worked
QUESTIONS BUYERS ASK
Colorectal Surgery Billing FAQ
Qualigenix charges a percentage of the collections we bring in, so our fee moves with your revenue. The percentage depends on your procedure volume, payer mix and the services you hand over, and we set it after a call with your team.
Yes. Each removal technique used in the session is coded once, such as snare (45385) and hot biopsy forceps (45384), and codes are sequenced under the multiple endoscopy rule.
We check frequency limits for G0105 and G0121 before the procedure, apply PT and KX where Medicare requires them, and review converted claims so the patient is charged the correct cost-sharing.
Yes. We work existing colorectal claims by payer and denial reason and appeal with the endoscopy or operative report attached. Across all Qualigenix clients, days in A/R have dropped from 54 to 36.
We bill the therapeutic colonoscopy code with the screening diagnosis listed first, adding modifier PT for Medicare or modifier 33 for commercial plans. That keeps the patient's screening benefit and pays the practice for the polyp removal.
Yes. ASC and hospital outpatient cases are billed at the facility rate with POS 24 or POS 22, while office procedures are billed at the non-facility rate with POS 11.
Yes. Qualigenix is system-agnostic and works across 133 EMR/EHR platforms, including the endoscopy reporting software your practice uses.