Question 1

Is H40 a billable ICD-10 code?

Accepted Answer

No, H40 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code H40 mean?

Accepted Answer

ICD-10-CM code H40 represents Glaucoma. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code H40 introduced?

Accepted Answer

Code H40 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code H40?

Accepted Answer

The parent category for H40 is section:H40-H42 (Glaucoma (H40-H42)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions are excluded from H40?

Accepted Answer

Code H40 has Type 1 Excludes (mutually exclusive conditions) including: absolute glaucoma (H44.51-); congenital glaucoma (Q15.0); traumatic glaucoma due to birth injury (P15.3). These conditions cannot be coded together with H40 as they represent different diagnoses.

H402026

Excludes13Not coded together

Excludes211Not included here

Notes1Additional information

Is H40 a billable ICD-10 code?

What does ICD-10 code H40 mean?

When was ICD-10 code H40 introduced?

What is the parent category for ICD-10 code H40?

What conditions are excluded from H40?