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ICD-10-CM 2027 diagnosis code

K63.81Dieulafoy lesion of intestine

✓ Billable / specificMCC — major complication/comorbidity

K63.81 is a valid, billable ICD-10-CM code for dieulafoy lesion of intestine. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K63.81

K63.81 is the ICD-10-CM diagnosis code for Dieulafoy lesion of intestine. It belongs to category K63 (other diseases of intestine), block K55-K64 (other diseases of intestines) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K63.8 (other specified diseases of intestine), K63.81 is specifically for Dieulafoy lesion of intestine. Related codes cover intestinal microbial overgrowth (K63.82) and other specified diseases of intestine (K63.89).

The conditions in its Excludes2 note aren't part of K63.81, but may be coded alongside it if the patient has both: Dieulafoy lesion of stomach and duodenum (K31.82).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 393 (Other Digestive System Diagnoses with MCC, relative weight 1.5881), DRG 394 (Other Digestive System Diagnoses with CC, relative weight 0.9228) and DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 569.86 (Dieulafoy lesion (hemorrhagic) of intestine).

Coding notes

Excludes2Not included here — may be reported together if both conditions exist
  • Dieulafoy lesion of stomach and duodenum (K31.82)

Notes that apply from higher levels

Instructions written at a parent level also apply to K63.81.

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to K63.81.

Codes whose notes reference K63.81

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 569.86Dieulafoy lesion (hemorrhagic) of intestineexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K63.81

Is K63.81 billable?

Yes. K63.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K63.81 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K63.81 as a principal diagnosis.

Is K63.81 a CC or MCC?

K63.81 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does K63.81 group to?

K63.81 is used in the MS-DRG v44.0 logic for MS-DRG 393 (Other Digestive System Diagnoses with MCC), MS-DRG 394 (Other Digestive System Diagnoses with CC) and MS-DRG 395 (Other Digestive System Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for K63.81?

The CMS General Equivalence Mappings map K63.81 to ICD-9-CM 569.86.