ICD10BillableValid for clinical use
ICD-10 Code D49.0: Neoplasm of unspecified behavior of digestive system
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents neoplasm of unspecified behavior of digestive system in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
D49Neoplasms of unspecified behavior (D49)
category
D49Neoplasms of unspecified behavior
currentD49
Official coding notes
Excludes1 (do not code together)
- neoplasm of unspecified behavior of margin of anus (D49.2)
- neoplasm of unspecified behavior of perianal skin (D49.2)
- neoplasm of unspecified behavior of skin of anus (D49.2)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
OncologistGeneral PhysicianGastroenterologist
Related codes
D49Neoplasms of unspecified behaviorcategoryD49.1Neoplasm of unspecified behavior of respiratory systemcodeD49.2Neoplasm of unspecified behavior of bone, soft tissue, and skincodeD49.3Neoplasm of unspecified behavior of breastcodeD49.4Neoplasm of unspecified behavior of bladdercodeD49.5Neoplasm of unspecified behavior of other genitourinary organscategoryD49.6Neoplasm of unspecified behavior of braincodeD49.7Neoplasm of unspecified behavior of endocrine glands and other parts of nervous systemcodeD49.8Neoplasm of unspecified behavior of other specified sitescategoryD49.9Neoplasm of unspecified behavior of unspecified sitecode
Sibling codes
D49Neoplasms of unspecified behaviorD49.1Neoplasm of unspecified behavior of respiratory systembillableD49.2Neoplasm of unspecified behavior of bone, soft tissue, and skinbillableD49.3Neoplasm of unspecified behavior of breastbillableD49.4Neoplasm of unspecified behavior of bladderbillableD49.5Neoplasm of unspecified behavior of other genitourinary organsD49.6Neoplasm of unspecified behavior of brainbillableD49.7Neoplasm of unspecified behavior of endocrine glands and other parts of nervous systembillableD49.8Neoplasm of unspecified behavior of other specified sitesD49.9Neoplasm of unspecified behavior of unspecified sitebillable
Coverage-related procedures and services
CPT 44388high
COLONOSCOPY THROUGH STOMA; DIAGNOSTIC, INCLUDING COLLECTION OF SPECIMEN(S) BY BRUSHING OR WASHING, WHEN PERFORMED (SEPARATE PROCEDURE)
Source: CMS coverage guidance
CPT 44401high
COLONOSCOPY THROUGH STOMA; WITH ABLATION OF TUMOR(S), POLYP(S), OR OTHER LESION(S) (INCLUDES PRE-AND POST-DILATION AND GUIDE WIRE PASSAGE, WHEN PERFORMED)
Source: CMS coverage guidance
CPT 44389high
COLONOSCOPY THROUGH STOMA; WITH BIOPSY, SINGLE OR MULTIPLE
Source: CMS coverage guidance
CPT 44391high
COLONOSCOPY THROUGH STOMA; WITH CONTROL OF BLEEDING, ANY METHOD
Source: CMS coverage guidance
CPT 44402high
COLONOSCOPY THROUGH STOMA; WITH ENDOSCOPIC STENT PLACEMENT (INCLUDING PRE- AND POST-DILATION AND GUIDE WIRE PASSAGE, WHEN PERFORMED)
Source: CMS coverage guidance
CPT 44390high
COLONOSCOPY THROUGH STOMA; WITH REMOVAL OF FOREIGN BODY(S)
Source: CMS coverage guidance
Coding guidelines
Common synonyms
Neoplasm of unspecified behavior of digestive systemNeoplasm of behavior of digestive system
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.