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ICD-10-CM 2027 diagnosis code

K61.5Supralevator abscess

✓ Billable / specific

K61.5 is a valid, billable ICD-10-CM code for supralevator abscess. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K61.5

K61.5 is the ICD-10-CM diagnosis code for Supralevator abscess. It belongs to category K61 (abscess of anal and rectal regions), 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 K61 (abscess of anal and rectal regions), K61.5 is specifically for Supralevator abscess. Related codes cover anal abscess (K61.0), rectal abscess (K61.1), Anorectal abscess (K61.2), ischiorectal abscess (K61.3) and Intrasphincteric abscess (K61.4).

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), DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 06 (Diseases and Disorders of the Digestive System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 was added in FY2019, effective October 1, 2018.

Notes that apply from higher levels

Instructions written at a parent level also apply to K61.5.

› From K61 Abscess of anal and rectal regions
Includes
  • abscess of anal and rectal regions
  • cellulitis of anal and rectal regions

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 K61.5.

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.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

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
  • FY2019 (effective 10/1/2018): Added
  • No changes since FY2019.

Common questions about K61.5

Is K61.5 billable?

Yes. K61.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K61.5 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K61.5 as a principal diagnosis.

Is K61.5 a CC or MCC?

No. K61.5 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K61.5 group to?

K61.5 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), MS-DRG 395 (Other Digestive System Diagnoses without CC/MCC), MS-DRG 791 (Prematurity with Major Problems) and MS-DRG 793 (Full Term Neonate with Major Problems). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.