2027 ICD-10-CM Diagnosis Code K6A.01Prevesical abscess

ICD-10-CM Codes›K00–K95›K65-K6A›K6A

ICD-10-CM K6A.01
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K6A.01 is a billable ICD-10-CM diagnosis code for prevesical abscess. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 371 through 373, 791, 793. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 25 closely related codes.

Code Identity

ICD-10-CM Code
K6A.01
Billable Status
Yes — Valid for Submission
Code Describes
Prevesical abscess
Short Description
Prevesical abscess
Same as the full description in the CMS dataset.
Parent Code
K6A.0
Pelvic abscess

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK65-K6ADiseases of peritoneum and retroperitoneum
CategoryK6ADiseases of the pelvis, not elsewhere classified
This CodeK6A.01Prevesical abscess

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K6A.01: its own notes plus those printed at K6A.0 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Retropubic abscess

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From K6A.0 Pelvic abscess applies to 2 codes
  • peritoneal abscess (K65.1)
  • retroperitoneal abscess (K68.1-)
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From K6A.0 Pelvic abscess applies to 2 codes
  • code (B95-B97), to identify infectious agent, if known

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From K6A.0 Pelvic abscess applies to 2 codes
  • if applicable:
  • diverticular disease of intestine (K57.-)
  • female pelvic inflammatory disease (N73.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K6A.01, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming K6A.01: its condition is not part of those codes, and both may be reported when the patient has both.

  • K65.1 Peritoneal abscess
    pelvic abscess (extraperitoneal) (K6A.0-) names K6A.0-, which includes this code

Code Also 2

These codes say K6A.01 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • K57 Diverticular disease of intestine
    pelvic abscess (K6A.0-) names K6A.0-, which includes this code
  • Block N70-N77 Inflammatory diseases of female pelvic organs
    if applicable, pelvic abscess (K6A.0-) names K6A.0-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical InformationClinical

  • Pelvic Abscess

    an abscess that is located in the pelvic cavity.

Code History & ChangesHistory

New Code K6A.01 was added to the ICD-10-CM code set for FY 2027, effective October 1, 2026.

Replacement K6A.01 replaces the following previously assigned code(s):

  • K68.19 - Other retroperitoneal abscess
FY 2027AddedAdded to the ICD-10-CM code setEffective October 1, 2026.
FY 2027CurrentRevised in the current code setEffective October 1, 2026 through September 30, 2027.

Questions About K6A.01Overview

What is the ICD-10 code for prevesical abscess?

The ICD-10-CM code for prevesical abscess is K6A.01 (sometimes written as K6A01). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K6A.01 (Pelvic abscess) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report prevesical abscess on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K6A.01 group to?

When prevesical abscess is the principal diagnosis on an inpatient stay, it groups to MS-DRG 372, 793, 791, 371, 373, with relative weights from 0.6945 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is K6A.01 a CC or MCC?

CMS lists K6A.01 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 25 closely related codes in its exclusion list.

Does K6A.01 need an additional code?

When the condition applies, yes. The Use Additional Code note at K6A.0, which applies to K6A.01, reads: code (B95-B97), to identify infectious agent, if known. The additional code is reported after K6A.01.