2027 ICD-10-CM Diagnosis Code H01.85Other specified inflammation of left lower eyelid

ICD-10-CM Codes›H00–H59›H00-H05›H01

ICD-10-CM H01.85
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H01.85 is a billable ICD-10-CM diagnosis code for other specified inflammation of 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
H01.85
Billable Status
Yes — Valid for Submission
Code Describes
Other specified inflammation of left lower eyelid
Short Description
Other specified inflammation of left lower eyelid
Same as the full description in the CMS dataset.
Parent Code
H01.8
Other specified inflammations of eyelid

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH00-H05Disorders of eyelid, lacrimal system and orbit
CategoryH01Other inflammation of eyelid
This CodeH01.85Other specified inflammation of left lower eyelid

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H01.85: its own notes plus those printed at H01.8, block H00-H05, and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

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)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From H01.8 Other specified inflammations of eyelid applies to 9 codes
  • if applicable, infestation by Demodex mites (B88.01)

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.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name H01.85, its category, or a range that includes it.

Use Additional Code 1

These codes say to use an additional code from the note, and H01.85 is one of the codes named.

  • L51 Erythema multiforme
    inflammation of eyelid (H01.8-) names H01.8-, which includes this code

Code Also 1

These codes say H01.85 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • B88.01 Infestation by Demodex mites
    if applicable, eyelid inflammation (H01.8-) names H01.8-, which includes 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.

Code History & ChangesHistory

Replacement H01.85 replaces the following previously assigned code(s):

  • H01.8 - Other specified inflammations of eyelid
FY 2026AddedAdded to the ICD-10-CM code setEffective October 1, 2025.
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H01.85Overview

What is the ICD-10 code for other specified inflammation of left lower eyelid?

The ICD-10-CM code for other specified inflammation of left lower eyelid is H01.85 (sometimes written as H0185). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H01.85 (Other specified inflammations of eyelid) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified inflammation of left lower eyelid on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H01.85 group to?

When other specified inflammation of 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.