ICDcodes.org
FY2027

D01.3 — Carcinoma in situ of anus and anal canal

Billable

Is D01.3 billable?

Yes — D01.3 is billable for FY2027. D01.3 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D01.3 may be submitted for encounters from October 1, 2026 through September 30, 2027.

D01.3 at a glance

CodeD01.3
DescriptionCarcinoma in situ of anus and anal canal
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does D01.3 group to?

D01.3 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 374Digestive Malignancy with MCCmedical
  • 375Digestive Malignancy with CCmedical
  • 376Digestive Malignancy without CC/MCCmedical

How is D01.3 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to D01.3. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Dysplasia › anus › severe
  • Neoplasia › intraepithelial › anal › severe

Excludes1 — never code together

The conditions below can never be reported together with D01.3 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • anal intraepithelial neoplasia I and II [AIN I and AIN II] (K62.82)
  • carcinoma in situ of anal margin (D04.5)
  • carcinoma in situ of anal skin (D04.5)
  • carcinoma in situ of perianal skin (D04.5)

Inclusion terms

Alternative wording in documentation that is classified to D01.3.

  • Anal intraepithelial neoplasia III [AIN III]
  • Severe dysplasia of anus

Excludes1 — never code together — inherited from D01

The conditions below can never be reported together with D01.3 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

How long has D01.3 existed?

D01.3 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which codes are confused with D01.3?

ICD-10-CM declares these codes mutually exclusive with D01.3 — exactly one of each pair can be correct for a given encounter.

What other codes are in the D01 family? (7)