H00.019 — Hordeolum externum unspecified eye, unspecified eyelid

H00.019

ICD-10 Chapter 7: Eye & Adnexa — illustrative image — Chapter 7: Diseases of the eye and adnexa (H00–H59) — illustrative image

What this code means

A stye (hordeolum externum) is a small, painful bacterial lump at the edge of the eyelid, at the base of an eyelash.

Also called: stye, hordeolum externum.

When this code is used

Used for hordeolum externum of an unspecified eye and eyelid.

Where it sits in ICD-10-CM

Code H00.019 belongs to Chapter 7: Diseases of the eye and adnexa, which covers codes H00–H59 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related anatomy

Frequently asked questions

What is ICD-10-CM code H00.019?

H00.019 is the ICD-10-CM diagnosis code for “Hordeolum externum unspecified eye, unspecified eyelid”. A stye (hordeolum externum) is a small, painful bacterial lump at the edge of the eyelid, at the base of an eyelash.

When is code H00.019 used?

Used for hordeolum externum of an unspecified eye and eyelid. It belongs to Chapter 7 of ICD-10-CM (Diseases of the eye and adnexa).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.