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ICD-10-CM 2027 diagnosis code

K63.89Other specified diseases of intestine

✓ Billable / specific

K63.89 is a valid, billable ICD-10-CM code for other specified diseases of intestine. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Rectosigmoiditis, ICD-10 code for Proctosigmoiditis, ICD-10 code for Intestinal anastomosis.

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 K63.89

K63.89 is the ICD-10-CM diagnosis code for other specified diseases 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, choose K63.89 (Other specified diseases of intestine) only when documentation doesn't support a more specific option: Dieulafoy lesion of intestine (K63.81) and intestinal microbial overgrowth (K63.82).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

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 569.89 (other specified disorders of intestine).

Notes that apply from higher levels

Instructions written at a parent level also apply to K63.89.

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

Alphabetic index entries

32 entries

Terms in the official ICD-10-CM index that lead to K63.89.

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

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  • 569.89Other specified disorders of intestineapproximate

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 K63.89

Is K63.89 billable?

Yes. K63.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K63.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K63.89 as a principal diagnosis.

Is K63.89 a CC or MCC?

No. K63.89 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K63.89 group to?

K63.89 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 K63.89?

The CMS General Equivalence Mappings map K63.89 to ICD-9-CM 569.89.