D37.8 is the authoritative medical code for Neoplasm of uncertain behavior of other specified digestive organs. This classification is used in medical billing and clinical recording to specify the clinical criteria for neoplasm of uncertain behavior of other specified digestive organs (ICD-10-CM D37.8), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Neoplasm of uncertain behavior of other specified digestive organs is a billable ICD-10-CM diagnosis code D37.8. Inclusion terms: Neoplasm of uncertain behavior of anal canal; Neoplasm of uncertain behavior of anal sphincter; Neoplasm of uncertain behavior of anus NOS; Neoplasm of uncertain behavior of esophagus; Neoplasm of uncertain behavior of intestine NOS; Neoplasm of uncertain behavior of pancreas. Excludes1 (not coded here): neoplasm of uncertain behavior of anal margin D48.5; neoplasm of uncertain behavior of anal skin D48.5; neoplasm of uncertain behavior of perianal skin D48.5; stromal tumors of uncertain behavior of digestive system D48.1-; neoplasms of unspecified behavior D49.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for D37.8 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Neoplasm of uncertain behavior of anal canal
- Neoplasm of uncertain behavior of anal sphincter
- Neoplasm of uncertain behavior of anus NOS
- Neoplasm of uncertain behavior of esophagus
- Neoplasm of uncertain behavior of intestine NOS
- Neoplasm of uncertain behavior of pancreas
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- neoplasm of uncertain behavior of anal margin D48.5
- neoplasm of uncertain behavior of anal skin D48.5
- neoplasm of uncertain behavior of perianal skin D48.5
- stromal tumors of uncertain behavior of digestive system D48.1-
- neoplasms of unspecified behavior D49.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with D37.8?
Per Excludes1 instructions, D37.8 must not be reported with: neoplasm of uncertain behavior of anal margin (D48.5); neoplasm of uncertain behavior of anal skin (D48.5); neoplasm of uncertain behavior of perianal skin (D48.5); stromal tumors of uncertain behavior of digestive system (D48.1-).
What conditions are included under D37.8?
Neoplasm of uncertain behavior of other specified digestive organs includes: Neoplasm of uncertain behavior of anal canal; Neoplasm of uncertain behavior of anal sphincter; Neoplasm of uncertain behavior of anus NOS; Neoplasm of uncertain behavior of esophagus; Neoplasm of uncertain behavior of intestine NOS.
Codes in This Family (13)
Official ICD-10-CM classifications in the same code family as D37.8, with their registry titles.
- D37 — Neoplasm of uncertain behavior of oral cavity and digestive organs
- D37.0 — Neoplasm of uncertain behavior of lip, oral cavity and pharynx
- D37.030 — Neoplasm of uncertain behavior of the parotid salivary glands
- D37.031 — Neoplasm of uncertain behavior of the sublingual salivary glands
- D37.032 — Neoplasm of uncertain behavior of the submandibular salivary glands
- D37.039 — Neoplasm of uncertain behavior of the major salivary glands, unspecified
- D37.1 — Neoplasm of uncertain behavior of stomach
- D37.2 — Neoplasm of uncertain behavior of small intestine
- D37.3 — Neoplasm of uncertain behavior of appendix
- D37.4 — Neoplasm of uncertain behavior of colon
- D37.5 — Neoplasm of uncertain behavior of rectum
- D37.6 — Neoplasm of uncertain behavior of liver, gallbladder and bile ducts
- D37.9 — Neoplasm of uncertain behavior of digestive organ, unspecified
Indexed Clinical Terms (5)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Glucagonoma, pancreas, uncertain behavior
- Glucagonoma, unspecified site, uncertain behavior
- Insulinoma, pancreas, uncertain behavior
- Insulinoma, unspecified site, uncertain behavior
- Tumor, G cell, unspecified site
Neoplasm Table Sites (36)
Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.
- Neoplasm, neoplastic, anorectum, anorectal (junction) — Uncertain Behavior
- Neoplasm, neoplastic, anus, anal — Uncertain Behavior
- Neoplasm, neoplastic, anus, anal, canal — Uncertain Behavior
- Neoplasm, neoplastic, anus, anal, cloacogenic zone — Uncertain Behavior
- Neoplasm, neoplastic, anus, anal, sphincter — Uncertain Behavior
- Neoplasm, neoplastic, canal, anal — Uncertain Behavior
- Neoplasm, neoplastic, cloacogenic zone — Uncertain Behavior
- Neoplasm, neoplastic, crypt of Morgagni — Uncertain Behavior
- Neoplasm, neoplastic, esophagus — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, abdominal — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, cervical — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, distal (third) — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, lower (third) — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, middle (third) — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, proximal (third) — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, thoracic — Uncertain Behavior
- Neoplasm, neoplastic, esophagus, upper (third) — Uncertain Behavior
- Neoplasm, neoplastic, hemorrhoidal zone — Uncertain Behavior
- Neoplasm, neoplastic, insular tissue (pancreas) — Uncertain Behavior
- Neoplasm, neoplastic, intestine, intestinal — Uncertain Behavior
- Neoplasm, neoplastic, intestine, intestinal, tract NEC — Uncertain Behavior
- Neoplasm, neoplastic, islands or islets of Langerhans — Uncertain Behavior
- Neoplasm, neoplastic, junction, anorectal — Uncertain Behavior
- Neoplasm, neoplastic, Langerhans, islands or islets — Uncertain Behavior
- Neoplasm, neoplastic, pancreas — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, body — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, duct (of Santorini) (of Wirsung) — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, ectopic tissue — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, head — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, islet cells — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, neck — Uncertain Behavior
- Neoplasm, neoplastic, pancreas, tail — Uncertain Behavior
- Neoplasm, neoplastic, Santorini's duct — Uncertain Behavior
- Neoplasm, neoplastic, sphincter, anal — Uncertain Behavior
- Neoplasm, neoplastic, spleen, splenic NEC — Uncertain Behavior
- Neoplasm, neoplastic, Wirsung's duct — Uncertain Behavior
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code D39.8
Neoplasm of uncertain behavior of other specified female genital organs
ICD Code D40.8
Neoplasm of uncertain behavior of other specified male genital organs
ICD Code D41.8
Neoplasm of uncertain behavior of other specified urinary organs