2026 ICD-10-CM Diagnosis Code K64.0First degree hemorrhoids
ICD-10-CM Codes›K00–K95›K55-K64›K64
- Billable — Valid for Submission
- Chronic Condition
K64.0 is a billable ICD-10-CM diagnosis code for first degree hemorrhoids. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. Coders also document this condition as bleeding hemorrhoids. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhoids.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bleeding hemorrhoids
- Bleeding internal hemorrhoid grade I
- Bleeding internal hemorrhoids
- Internal hemorrhoids grade I
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Grade/stage I hemorrhoids
- Hemorrhoids (bleeding) without prolapse outside of anal canal
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Hemorrhoids(bleeding) (without mention of degree)
- 1st degree (grade/stage I) (without prolapse outside of anal canal)
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Hemorrhoids
Hemorrhoids are swollen, inflamed veins around your anus or the lower part of your rectum. There are two types:
The full article covers:
- What are hemorrhoids?
- What causes hemorrhoids?
- What are the symptoms of hemorrhoids?
- How can I treat hemorrhoids at home?
- When do I need to see a health care provider for hemorrhoids?
- How are hemorrhoids diagnosed?
- What are the treatments for hemorrhoids?
- Can hemorrhoids be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K64.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K64.0Overview
Is K64.0 (Hemorrhoids and perianal venous thrombosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report first degree hemorrhoids on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K64.0 group to?
When first degree hemorrhoids is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of K64.0?
Under the General Equivalence Mappings, first degree hemorrhoids converts to ICD-9-CM 455.0 (int hemorrhoid w/o compl), 455.1 (int thrombos hemorrhoid), and 455.2 (int hemrrhoid w comp NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
