CPT 3775F Colonoscopy Reimbursement & Policy

CPT code 3775F identifies a colonoscopic screening in patients aged 50 or older with documentation of one or more adenomas or other colonic neoplasms. This code is used to capture the presence of polyps or neoplastic findings identified during screening colonoscopy, which has implications for surveillance intervals, quality measurement, and population colorectal cancer prevention efforts nationwide. Payers commonly referenced in analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise clinical and billing context for CPT code 3775F, including its role in colorectal cancer screening workflows, the typical service setting (endoscopy suites or ambulatory surgical centers), common modifiers associated with the service, and how the code is used in quality measurement and reporting. The publication also covers payer coverage patterns and benchmarks where available, relevant policy updates affecting screening and surveillance, and practical considerations that influence coding and documentation. Data not available in the input is noted where applicable, and the content is presented for a national audience concerned with clinical documentation, billing accuracy, and program-level reporting.

Billing Code Overview

CPT code 3775F documents that a provider screens the colon of a patient aged 50 or older using a colonoscope, a flexible tube with a camera at one end, and records the presence of one or more adenomas or other neoplasm types.

Service type: Colonoscopic screening with documented adenoma or neoplasm
Typical site of service: Endoscopy suite or ambulatory surgical center where colonoscopy procedures are performed

Clinical Context

A typical patient is a 60-year-old asymptomatic adult presenting for routine colorectal cancer screening. The patient has no acute complaints, multiple comorbidities under management, and has met the age threshold for screening. The clinical workflow includes pre-procedure evaluation and consent, bowel preparation instructions completed at home, verification of medication and anticoagulation status on arrival, sedation administered by an anesthetist or proceduralist, and colonoscopic visualization of the entire colon using a flexible colonoscope. During the exam the provider documents one or more adenomas or other neoplastic lesions by size, number, morphology, and location, with biopsy or removal performed as indicated. Post-procedure recovery includes monitoring until sedation effects resolve, discharge instructions, and documentation of pathology follow-up and surveillance interval planning when neoplasia is identified.

Coding Specifications

Modifier	Description	When to Use
`52`	Reduced services	Use when the colonoscopy is performed but the service is partially reduced (for example, aborted due to poor prep but some diagnostic exam completed).
`53`	Discontinued procedure

Taxonomy Code	Specialty	Notes
`207L00000X`	Gastroenterology	Primary specialty performing screening and therapeutic colonoscopy.
`207K00000X`	Colon and Rectal Surgery	Performs diagnostic and therapeutic colonoscopy and polypectomy in some settings.
`207RC0000X`	Family Medicine	May perform screening colonoscopy in procedural primary care practices with credentialed providers.
`207QP3000X`	Internal Medicine	General internists with procedural training may perform screening colonoscopy in some settings.
`3336C0003X`	Anesthesiology	Provides sedation/anesthesia services for colonoscopy when required.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K50.919`	Crohn's disease, unspecified, without complications	Chronic inflammatory bowel disease that may prompt colonoscopic surveillance and detection of neoplastic change.
`K51.90`	Ulcerative colitis, unspecified, without complications	Patients with ulcerative colitis undergo surveillance colonoscopy for dysplasia and neoplasia.
`K57.30`	Diverticulosis of large intestine without perforation or abscess without bleeding	Common colonic condition encountered during colonoscopy; may alter procedural approach.
`D12.6`	Benign neoplasm of colon, unspecified	Represents benign polyps identified and documented during screening colonoscopy.
`C18.9`	Malignant neoplasm of colon, unspecified	Identification of suspicious lesions during screening colonoscopy that may require biopsy and staging.
`R19.5`	Other fecal abnormalities	Changes in stool that can lead to colonoscopic evaluation and detection of adenomas.
`Z12.11`	Encounter for screening for malignant neoplasm of colon	Screening indication for colonoscopy in asymptomatic adults aged 50 and older.
`Z80.0`	Family history of malignant neoplasm of digestive organs	Family history that increases screening frequency and prompts colonoscopy.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`45378`	Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure code for diagnostic/limited colonoscopy)	Often the primary E/M or diagnostic colonoscopy code used when visualization leads to biopsy or diagnosis; screening code variants relate to initial screening exams.
`45380`	Colonoscopy, flexible; with biopsy, single or multiple	Performed when tissue sampling is required after identification of adenomas or suspicious lesions during screening.
`45385`	Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique	Used when polyps identified during the screening colonoscopy are removed endoscopically.
`43463`	Colonoscopy, flexible; with ablation of lesion(s) (for example, hot biopsy, cautery)	Used for lesion ablation performed during the same session as screening if indicated.
`99152`	Moderate sedation services provided by the same physician performing the procedure, first 30 minutes	Billed when the proceduralist provides moderate (conscious) sedation; sedation coding depends on payer and setting.
`99153`	Moderate sedation services provided by the same physician, each additional 15 minutes	Billed for additional sedation time beyond initial interval when applicable.

OpenPayer

Summary & Overview

CPT 3775F: Colonoscopy Screening with Adenoma or Neoplasm Documented