2027 ICD-10-CM Diagnosis Code K64Hemorrhoids and perianal venous thrombosis

ICD-10-CM Codes›K00–K95›K55-K64›K64

ICD-10-CM K64
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K64 is a non-billable ICD-10-CM category code for hemorrhoids and perianal venous thrombosis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as K64.0, K64.1, K64.2, and K64.3.

Code Identity

ICD-10-CM Code
K64
Billable Status
No — Non-Billable Category
Code Describes
Hemorrhoids and perianal venous thrombosis
Short Description
Hemorrhoids and perianal venous thrombosis
Same as the full description in the CMS dataset.
Chapter
K55-K64
Other diseases of intestines

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK55-K64Other diseases of intestines
CategoryK64Hemorrhoids and perianal venous thrombosis
This CodeK64Hemorrhoids and perianal venous thrombosis

Specific Coding for Hemorrhoids and perianal venous thrombosisOverview

Non-specific codes like K64 require more characters. Use one of these billable codes instead:

  • Use K64.0 for First degree hemorrhoids

  • Use K64.1 for Second degree hemorrhoids

  • Use K64.2 for Third degree hemorrhoids

  • Use K64.3 for Fourth degree hemorrhoids

  • Use K64.4 for Residual hemorrhoidal skin tags

  • Use K64.5 for Perianal venous thrombosis

  • Use K64.8 for Other hemorrhoids

  • Use K64.9 for Unspecified hemorrhoids

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K64: its own notes plus those printed at Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • piles

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • hemorrhoids complicating childbirth and the puerperium (O87.2)
  • hemorrhoids complicating pregnancy (O22.4)

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 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)

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K64, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming K64: its condition is not part of those codes, and both may be reported when the patient has both.

  • K62 Other diseases of anus and rectum
    hemorrhoids (K64.-)

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.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K64Overview

What is the ICD-10 code for hemorrhoids and perianal venous thrombosis?

K64 is the ICD-10-CM category for hemorrhoids and perianal venous thrombosis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is K64 (Hemorrhoids and perianal venous thrombosis) a billable code?

No. This is a category header that groups the codes for hemorrhoids and perianal venous thrombosis, and headers cannot be submitted on claims. Claims for hemorrhoids and perianal venous thrombosis need a more specific code from this category, such as K64.0, K64.1, and K64.2.

Can K64 be reported with O87.2?

Not as a rule. The Excludes1 note on K64 lists "hemorrhoids complicating childbirth and the puerperium (O87.2)". 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).