Summary & Overview
CPT 45380: Flexible Colonoscopy with Biopsy
CPT code 45380 represents a flexible colonoscopy performed proximal to the splenic flexure with biopsy, either single or multiple. This procedure is widely utilized in the diagnosis and management of gastrointestinal diseases, including colorectal cancer and infectious or inflammatory conditions. The code is recognized by major national payers, including Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare, underscoring its importance in both clinical practice and medical billing.
This publication provides a comprehensive overview of 45380, covering payer coverage, relevant modifiers, associated provider taxonomies, and common ICD-10 diagnoses linked to the procedure. Readers will gain insight into clinical indications, billing nuances, and policy updates affecting reimbursement and utilization. The analysis also highlights related CPT codes, such as 45385, to contextualize procedural options within endoscopy services. By understanding the scope and application of 45380, stakeholders can better navigate the evolving landscape of gastroenterology procedures and medical coding.
CPT Code Overview
CPT code 45380 describes a flexible colonoscopy procedure performed proximal to the splenic flexure with biopsy, either single or multiple. This procedure is a key component of endoscopy procedures on the rectum and colon, allowing physicians to visually examine the colon and obtain tissue samples for diagnostic purposes. The typical site of service for this procedure is not explicitly documented in available sources. Colonoscopy with biopsy is commonly used to investigate symptoms such as rectal bleeding, chronic diarrhea, or abnormal imaging findings, and plays a critical role in the diagnosis and management of various gastrointestinal conditions.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult presenting with symptoms such as rectal bleeding, unexplained changes in bowel habits, or abdominal pain. The provider, often a gastroenterologist, family medicine physician, or internal medicine physician, performs a flexible colonoscopy extending proximal to the splenic flexure. During the procedure, one or more biopsies are taken from suspicious lesions or areas of inflammation to aid in diagnosis. This workflow is common for evaluating suspected malignancies, infectious colitis, or chronic inflammatory conditions of the colon and rectum.
Coding Specifications
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Modifiers:
- Modifier
PT: Used when a colorectal cancer screening test is converted to a diagnostic or therapeutic procedure during the same encounter. - Modifier
59: Indicates a distinct procedural service, such as when biopsies are performed on separate lesions or during separate encounters.
- Modifier
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Provider Taxonomies:
| Taxonomy Code | Specialty |
|---|---|
207RG0100X | Gastroenterology Physician |
207Q00000X | Family Medicine Physician |
207R00000X | Internal Medicine Physician |
These specialties are typically involved in performing and coding colonoscopy procedures with biopsy.
Related Diagnoses
A04.71: Enterocolitis due to Clostridium difficile, recurrent- Relevant for patients with recurrent infectious colitis requiring colonoscopic evaluation and biopsy.
A04.72: Enterocolitis due to Clostridium difficile, not specified as recurrent- Used for cases of C. difficile colitis where recurrence is not specified, often evaluated by colonoscopy.
A06.0: Acute amebic dysentery- Indicates acute infectious colitis, where colonoscopy and biopsy help confirm diagnosis.
A06.1: Chronic intestinal amebiasis- Chronic infection may necessitate colonoscopic biopsy for diagnosis.
A06.2: Amebic nondysenteric colitis- Colonoscopy with biopsy assists in differentiating types of amebic colitis.
A06.9: Amebiasis, unspecified- Used when the type of amebiasis is unclear; colonoscopy may be performed for further evaluation.
C18.0: Malignant neoplasm of cecum- Biopsy during colonoscopy is essential for diagnosis of suspected cecal cancer.
C18.1: Malignant neoplasm of appendix- Colonoscopy with biopsy may be performed if appendiceal malignancy is suspected.
C18.2: Malignant neoplasm of ascending colon- Biopsy is required to confirm malignancy in the ascending colon.
C18.3: Malignant neoplasm of hepatic flexure- Colonoscopic biopsy is used for diagnosis of tumors at the hepatic flexure.
C18.4: Malignant neoplasm of transverse colon- Biopsy during colonoscopy helps diagnose transverse colon cancer.
C18.5: Malignant neoplasm of splenic flexure- Colonoscopy with biopsy is performed for suspected splenic flexure neoplasms.
C18.6: Malignant neoplasm of descending colon- Biopsy is necessary for diagnosis of descending colon malignancy.
C18.7: Malignant neoplasm of sigmoid colon- Colonoscopic biopsy is used to evaluate suspected sigmoid colon cancer.
C18.8: Malignant neoplasm of overlapping sites of colon- Biopsy assists in diagnosing cancers involving multiple colon sites.
C19: Malignant neoplasm of rectosigmoid junction- Colonoscopy with biopsy is performed for rectosigmoid junction tumors.
C20: Malignant neoplasm of rectum- Biopsy is essential for diagnosis of rectal cancer.
C21.0: Malignant neoplasm of anus, unspecified- Colonoscopy may be used to evaluate and biopsy anal lesions.
C21.1: Malignant neoplasm of anal canal- Biopsy during colonoscopy helps diagnose anal canal malignancy.
C21.2: Malignant neoplasm of cloacogenic zone- Colonoscopic biopsy is performed for suspected cloacogenic zone tumors.
C21.8: Malignant neoplasm of overlapping sites of rectum, anus and anal canal- Biopsy assists in diagnosing cancers involving multiple anorectal sites.
Related CPT Codes
45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
45385 is related to 45380 as both are colonoscopy procedures. While 45380 involves biopsy (sampling tissue), 45385 is used when a lesion, polyp, or tumor is removed using a snare technique. These codes may be used together if both biopsy and snare removal are performed during the same procedure, or as alternatives depending on the clinical findings.
National Reimbursement Benchmarks
National mean rates for CPT code 45380 show that Medicare reimburses at $498.15, while the BUCA (Blue Cross Blue Shield, UnitedHealth Group, Cigna, Aetna) commercial average is $446.82. UnitedHealth Group stands out with the highest mean rate at $632.89, and Aetna is the lowest among commercial payers at $344.39.
Rate dispersion varies significantly across payers. UnitedHealth Group has the widest spread, with a difference of $326.00 between its 75th and 25th percentiles, indicating substantial variability in contracted rates. In contrast, Aetna exhibits the tightest range at $161.50, suggesting more consistent rates across providers. Medicare's range is also relatively narrow at $57.00, reflecting its standardized fee schedule.
The table and chart below present a detailed breakdown of national benchmarks for each payer, including mean rates and percentile values.
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