2026 ICD-10-CM Diagnosis Code H11.413Vascular abnormalities of conjunctiva, bilateral
ICD-10-CM Codes›H00–H59›H10-H11›H11
- Billable — Valid for Submission
- Not Chronic
H11.413 is a billable ICD-10-CM diagnosis code for vascular abnormalities of conjunctiva, bilateral. 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. Coders also document this condition as bilateral conjunctivae vascular anomaly. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cornea and external disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bilateral conjunctivae vascular anomaly
- Vascular abnormality of conjunctiva
- Vascular abnormality of left conjunctiva
- Vascular abnormality of right conjunctiva
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
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Convert H11.413 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H11.413Overview
Is H11.413 (Vascular abnormalities of conjunctiva) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report vascular abnormalities of conjunctiva, bilateral on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does H11.413 group to?
When vascular abnormalities of conjunctiva, bilateral is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of H11.413?
Under the General Equivalence Mappings, vascular abnormalities of conjunctiva, bilateral converts to ICD-9-CM 372.74 (conjunctiva vasc anomaly). 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.
