D01.0 is the authoritative medical code for Carcinoma in situ of colon. This classification is used in medical billing and clinical recording to specify the clinical criteria for carcinoma in situ of colon (ICD-10-CM D01.0), 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
Carcinoma in situ of colon is a billable ICD-10-CM diagnosis code D01.0. Includes: Bowen's disease; erythroplasia; grade III intraepithelial neoplasia; Queyrat's erythroplasia. Excludes1 (not coded here): carcinoma in situ of rectosigmoid junction D01.1; melanoma in situ D03.-.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for D01.0 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- carcinoma in situ of rectosigmoid junction D01.1
- melanoma in situ D03.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with D01.0?
Per Excludes1 instructions, D01.0 must not be reported with: carcinoma in situ of rectosigmoid junction (D01.1); melanoma in situ (D03.-).
Codes in This Family (10)
Official ICD-10-CM classifications in the same code family as D01.0, with their registry titles.
- D01 — Carcinoma in situ of other and unspecified digestive organs
- D01.1 — Carcinoma in situ of rectosigmoid junction
- D01.2 — Carcinoma in situ of rectum
- D01.3 — Carcinoma in situ of anus and anal canal
- D01.4 — Carcinoma in situ of other and unspecified parts of intestine
- D01.40 — Carcinoma in situ of unspecified part of intestine
- D01.49 — Carcinoma in situ of other parts of intestine
- D01.5 — Carcinoma in situ of liver, gallbladder and bile ducts
- D01.7 — Carcinoma in situ of other specified digestive organs
- D01.9 — Carcinoma in situ of digestive organ, unspecified
Neoplasm Table Sites (26)
Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.
- Neoplasm, neoplastic, appendix — Ca in situ
- Neoplasm, neoplastic, caput coli — Ca in situ
- Neoplasm, neoplastic, cecum — Ca in situ
- Neoplasm, neoplastic, hepatic, flexure (colon) — Ca in situ
- Neoplasm, neoplastic, ileocecum, ileocecal (coil) (junction) (valve) — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, appendix — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, caput coli — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, cecum — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, ascending — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, caput — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, descending — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, distal — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, left — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, pelvic — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, right — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, sigmoid (flexure) — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, colon, transverse — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, hepatic flexure — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, ileocecum, ileocecal (coil) (valve) — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, sigmoid flexure (lower) (upper) — Ca in situ
- Neoplasm, neoplastic, intestine, intestinal, large, splenic flexure — Ca in situ
- Neoplasm, neoplastic, junction, ileocecal — Ca in situ
- Neoplasm, neoplastic, sigmoid flexure (lower) (upper) — Ca in situ
- Neoplasm, neoplastic, spleen, splenic NEC, flexure (colon) — Ca in situ
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: