2026 ICD-10-CM Diagnosis Code S05.01XAInjury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter
S05.01XA is a billable ICD-10-CM diagnosis code for injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Superficial injury; contusion, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abrasion of ocular adnexa of right eye
- Abrasion of right conjunctiva
- Abrasion of right cornea
- Abrasion of right eye region
- Conjunctival abrasion
- Conjunctival wound
- Corneal abrasion
- Right superficial conjunctival injury
- Superficial injury of conjunctiva
- Superficial injury of cornea
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of eye and orbit (S05). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Superficial Injury of Cornea
trauma to the corneal epithelium.Corneal Abrasion
injury to the epithelium of the cornea.
Patient EducationClinical
Corneal Disorders
Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter. It also helps your eye to focus. If you wear contact lenses, they float on top of your corneas.
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Convert S05.01XA to ICD-9-CMHistory
Code HistoryHistory
Questions About S05.01XAOverview
Is S05.01XA a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S05.01XA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for injury of conjunctiva and corneal abrasion without foreign body, such as an emergency visit or first evaluation.
What MS-DRG does S05.01XA group to?
When injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, 963, 964, 965, with relative weights from 0.7678 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S05.01XA?
Under the General Equivalence Mappings, injury of conjunctiva and corneal abrasion without foreign body, right eye, initial encounter converts to ICD-9-CM 918.1 (superficial inj cornea) and 918.2 (superfic inj conjunctiva). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
