2027 ICD-10-CM Diagnosis Code K62.6Ulcer of anus and rectum
ICD-10-CM Codes›K00–K95›K55-K64›K62
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
K62.6 is a billable ICD-10-CM diagnosis code for ulcer of anus and rectum. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 393 through 395. 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 Anal and rectal conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute hemorrhagic ulcer of rectum
- Amebiasis of skin
- Amebic ulcer of skin
- Bleeding ulcer of large intestine
- Drug induced anal ulceration
- Perianal amebiasis
- Solitary rectal ulcer syndrome
- Stercoral ulcer of anus
- Stercoral ulcer of large intestine
- Stercoral ulcer of rectum
- Ulcer of anogenital region due to Behcet disease
- Ulcer of anorectal structure
- Ulcer of anus
- Ulcer of perianal skin due to amebiasis
- Ulcer of rectal mucosa
- Ulcer of rectum
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K62.6: its own notes plus those printed at K62 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.
- Solitary ulcer of anus and rectum
- Stercoral ulcer of anus and rectum
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.
Referenced in Other NotesGuidance
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
Anal Disorders
Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body.
The full article covers:
- What is the anus?
- What are anal disorders?
- What are the symptoms of anal disorders?
- How are anal disorders diagnosed?
- How are anal disorders treated?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K62.6 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K62.6Overview
What is the ICD-10 code for ulcer of anus and rectum?
The ICD-10-CM code for ulcer of anus and rectum is K62.6 (sometimes written as K626). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K62.6 (Other diseases of anus and rectum) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report ulcer of anus and rectum on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K62.6 group to?
When ulcer of anus and rectum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 394, 395, 393, with relative weights from 0.6379 to 1.5877 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K62.6 a CC or MCC?
CMS lists K62.6 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 K62.6 be reported with a code from K60?
Not as a rule. The Excludes1 note on K62.6 lists "fissure and fistula of anus and rectum (K60.-)". 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).
