2027 ICD-10-CM Diagnosis Code H10.211Acute toxic conjunctivitis, right eye

ICD-10-CM Codes›H00–H59›H10-H11›H10

ICD-10-CM H10.211
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H10.211 is a billable ICD-10-CM diagnosis code for acute toxic conjunctivitis, right eye. 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. Coders also document this condition as acute conjunctivitis caused by chemical. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cornea and external disease and Drug induced or toxic related condition.

Code Identity

ICD-10-CM Code
H10.211
Billable Status
Yes — Valid for Submission
Code Describes
Acute toxic conjunctivitis, right eye
Short Description
Acute toxic conjunctivitis, right eye
Same as the full description in the CMS dataset.
Parent Code
H10.21
Acute toxic conjunctivitis

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH10-H11Disorders of conjunctiva
CategoryH10Conjunctivitis
This CodeH10.211Acute toxic conjunctivitis, right eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute conjunctivitis caused by chemical
  • Acute conjunctivitis of right eye caused by chemical substance
  • Acute toxic conjunctivitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H10.211: its own notes plus those printed at H10.21, H10, 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 H10.21 Acute toxic conjunctivitis applies to 4 codes
  • burn and corrosion of eye and adnexa (T26.-)
From H10 Conjunctivitis applies to 72 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 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 First

The underlying condition named in the note is sequenced before this code.

From H10.21 Acute toxic conjunctivitis applies to 4 codes
  • (T51-T65) to identify chemical and intent

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.

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 INJ030
Drug induced or toxic related condition
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Conjunctivitis

    inflammation of the conjunctiva.

Patient EducationClinical

Pink Eye

Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include:

Read the full article at MedlinePlus

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

Convert H10.211 to ICD-9-CMHistory

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

ICD-9-CM
372.06 Ac chem conjunctivitis
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 H10.211Overview

What is the ICD-10 code for acute toxic conjunctivitis, right eye?

The ICD-10-CM code for acute toxic conjunctivitis, right eye is H10.211 (sometimes written as H10211). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H10.211 (Acute toxic conjunctivitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute toxic conjunctivitis, right eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H10.211 group to?

When acute toxic conjunctivitis, right eye 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.

Can H10.211 be reported with a code from T26?

Not as a rule. The Excludes1 note at H10.21, which applies to H10.211, lists "burn and corrosion of eye and adnexa (T26.-)". 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).

What is coded first with H10.211?

The Code First note at H10.21, which applies to H10.211, reads: (T51-T65) to identify chemical and intent. When one of these applies, it is sequenced before H10.211.