2027 ICD-10-CM Diagnosis Code K63.0Abscess of intestine
ICD-10-CM Codes›K00–K95›K55-K64›K63
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
K63.0 is a billable ICD-10-CM diagnosis code for abscess of intestine. 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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 1 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Peritonitis and intra-abdominal abscess.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abscess of intestine
- Abscess of intestine co-occurrent and due to chronic ulcerative pancolitis
- Abscess of intestine co-occurrent and due to chronic ulcerative proctitis
- Abscess of intestine co-occurrent and due to chronic ulcerative rectosigmoiditis
- Abscess of intestine co-occurrent and due to colonic inflammatory polyps
- Abscess of intestine co-occurrent and due to Crohn's disease
- Abscess of intestine co-occurrent and due to Crohn's disease of large intestine
- Abscess of intestine co-occurrent and due to Crohn's disease of small and large intestine
- Abscess of intestine co-occurrent and due to Crohn's disease of small intestine
- Abscess of intestine co-occurrent and due to diverticular disease
- Abscess of intestine co-occurrent and due to ulcerative colitis
- Abscess of peritoneum
- Abscess of sigmoid colon
- Chronic left-sided ulcerative colitis
- Chronic proctocolitis
- Chronic ulcerative pancolitis
- Chronic ulcerative proctitis
- Chronic ulcerative rectosigmoiditis
- Complication due to chronic ulcerative pancolitis
- Complication due to chronic ulcerative proctitis
- Complication due to chronic ulcerative rectosigmoiditis
- Complication due to colonic inflammatory polyps
- Complication due to Crohn's disease of large intestine
- Complication due to Crohn's disease of small and large intestines
- Complication due to Crohn's disease of small intestine
- Crohn's disease of small and large intestines
- Infection causing abscess of colon
- Inflammatory polyposis of intestine
- Left sided ulcerative colitis
- Pre-ileal abscess
- Proctocolitis
- Proctosigmoiditis
- Pseudopolyposis of colon
- Sigmoid colon ulcer
- Ulcerative pancolitis
- Ulcerative proctitis
- Ulcerative proctocolitis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K63.0: its own notes plus those printed at Chapter 11. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
- 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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Abscess
An abscess is a pocket of pus. You can get an abscess almost anywhere in your body. When an area of your body becomes infected, your body's immune system tries to fight the infection. White blood cells go to the infected area, collect within the damaged tissue, and cause inflammation. During this process, pus forms.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K63.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K63.0Overview
What is the ICD-10 code for abscess of intestine?
The ICD-10-CM code for abscess of intestine is K63.0 (sometimes written as K630). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K63.0 (Other diseases of intestine) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report abscess of intestine on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K63.0 group to?
When abscess of intestine is the principal diagnosis on an inpatient stay, it groups to MS-DRG 372, 371, 373, with relative weights from 0.6945 to 1.7087 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K63.0 a CC or MCC?
CMS lists K63.0 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 1 closely related codes in its exclusion list.
Can K63.0 be reported with K50.014?
Not as a rule. The Excludes1 note on K63.0 lists "abscess of intestine with Crohn's disease (K50.014, K50.114, K50.814, K50.914,)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
