ICD-10-CM Diagnosis Code H40.841 - Neovascular secondary angle closure glaucoma, right eye (original) (raw)

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ICD List 2025-2026 Edition

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Neovascular secondary angle closure glaucoma, right eye

ICD-10-CM Code:

H40.841

ICD-10 Code for:

Neovascular secondary angle closure glaucoma, right eye

Is Billable?

Yes - Valid for Submission

Code Navigator:

H40.841 is a billable diagnosis code used to specify a medical diagnosis of neovascular secondary angle closure glaucoma, right eye. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.

This code describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

ICD-10-CM Codes Adjacent to H40.841

  1. Code Information
  2. 2026 ICD-10 Code
  3. Tabular List of Diseases and Injuries
  4. Code Edits
  5. Diagnostic Related Groups Mapping
  6. Replacement Code
  7. Patient Education
  8. Other Codes Used Similar Conditions
  9. Code History

Code Classification

Diseases of the eye and adnexa (H00–H59)

Glaucoma (H40-H42)

Glaucoma (H40)

New 2026 ICD-10-CM Code

H40.841 is new to ICD-10-CM code set for the FY 2026, effective October 1, 2025. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2025. This is a new and revised code for the FY 2026 (October 1, 2025 - September 30, 2026).

Code Edits

The Medicare Code Editor (MCE) detects errors and inconsistencies in ICD-10-CM diagnosis coding that can affect Medicare claim validity. These Medicare code edits help medical coders and billing professionals determine when a diagnosis code is not appropriate as a principal diagnosis, does not meet coverage criteria. Use this list to verify whether a code is valid for Medicare billing and to avoid claim rejections or denials due to diagnosis coding issues.

Unacceptable principal diagnosis

There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

MS-DRG Mapping for ICD-10-CM Code H40.841

Diagnosis-Related Groups (DRGs) are used to classify hospital cases for billing and healthcare management. They help standardize how hospitals and other providers are reimbursed for inpatient care. Patients are grouped based on their principal diagnosis into broader categories called Major Diagnostic Categories (MDCs).

Once assigned to a DRG, the hospital receives a set payment for the patient’s care, regardless of the actual services provided. This fixed rate is intended to cover the typical cost of treating patients within that group. The payment amount depends on the DRG's relative weight, which reflects the expected complexity and cost of care based on the severity of the patient’s condition.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V43.0 applicable from 10/01/2025 through 09/30/2026.

Other Disorders of the Eye with MCC or Thrombolytic Agent

MS-DRG: 124

MDC: 02 - Diseases & Disorders of the Eye

**Relative Weight:**1.3231

Other Disorders of the Eye without MCC

MS-DRG: 125

MDC: 02 - Diseases & Disorders of the Eye

**Relative Weight:**0.7678

Replacement Code

H40841 replaces the following previously assigned ICD-10-CM code(s):

Other ICD-10-CM Codes Commonly Used for Similar Conditions

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Code History