2027 ICD-10-CM Diagnosis Code H02.055Trichiasis without entropion left lower eyelid

ICD-10-CM Codes›H00–H59›H00-H05›H02

ICD-10-CM H02.055
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H02.055 is a billable ICD-10-CM diagnosis code for trichiasis without entropion left lower eyelid. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cornea and external disease and Oculofacial plastics and orbital conditions.

Code Identity

ICD-10-CM Code
H02.055
Billable Status
Yes — Valid for Submission
Code Describes
Trichiasis without entropion left lower eyelid
Short Description
Trichiasis without entropion left lower eyelid
Same as the full description in the CMS dataset.
Parent Code
H02.05
Trichiasis without entropion

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH00-H05Disorders of eyelid, lacrimal system and orbit
CategoryH02Other disorders of eyelid
This CodeH02.055Trichiasis without entropion left lower eyelid

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H02.055: its own notes plus those printed at H02, block H00-H05, and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

Excludes1

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

From H02 Other disorders of eyelid applies to 259 codes

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 Block H00-H05 Disorders of eyelid, lacrimal system and orbit applies to 574 codes
From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 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)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • 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)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

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

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.

CCSR EYE001
Cornea and external disease
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR EYE008
Oculofacial plastics and orbital conditions
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Eyelid Disorders

Eyelid disorders include a variety of conditions that affect your eyelids. Your eyelids protect your eyes and help keep them healthy. When you blink, they spread tears across your eyes and help wash away dirt or dust. You also close your eyelids when something comes near your eyes to protect them from injury.

The full article covers:

  • What are eyelid disorders?
  • What causes eyelid disorders?
  • What are common eyelid disorders?
  • What are the symptoms of eyelid disorders?
  • How are eyelid disorders diagnosed?
  • How are eyelid disorders treated?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H02.055 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
374.05 Trichiasis w/o entropion
Approximate The match is approximate rather than exact.

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 H02.055Overview

What is the ICD-10 code for trichiasis without entropion left lower eyelid?

The ICD-10-CM code for trichiasis without entropion left lower eyelid is H02.055 (sometimes written as H02055). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H02.055 (Trichiasis without entropion) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report trichiasis without entropion left lower eyelid on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H02.055 group to?

When trichiasis without entropion left lower eyelid is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H02.055?

Under the General Equivalence Mappings, trichiasis without entropion left lower eyelid converts to ICD-9-CM 374.05 (trichiasis w/o entropion). The mapping is approximate, so confirm the match fits the documentation.