ICD-10-CM 2027 diagnosis code

K64Hemorrhoids and perianal venous thrombosis

Not billable — use a more specific code

K64 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K64

K64 is the ICD-10-CM diagnosis code for hemorrhoids and perianal venous thrombosis. It belongs to block K55-K64 (other diseases of intestines) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: K64.0 (hemorrhoids), K64.1 (hemorrhoids), K64.2 (hemorrhoids), K64.3 (hemorrhoids), K64.4 (tags), K64.5 (thrombosis), K64.8 (hemorrhoids) and K64.9 (hemorrhoids).

Don't report K64 together with the conditions in its Excludes1 note: hemorrhoids complicating childbirth and the puerperium (O87.2) and hemorrhoids complicating pregnancy (O22.4).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under K64

Coding notes

IncludesFurther defines the content of the category

piles

Excludes1Not coded here — never report together with this code

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

Notes that apply from higher levels

Instructions written at a parent level also apply to K64.

Broader instructions also apply from Chapter 11: Diseases of the digestive system.

Codes whose notes reference K64

K62Excludes2

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about K64

Is K64 billable?: No. K64 is a header code. Report one of its more specific subcodes instead.