Question 1

Is H21 a billable ICD-10 code?

Accepted Answer

No, H21 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 H21 mean?

Accepted Answer

ICD-10-CM code H21 represents Other disorders of iris and ciliary body. 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 H21 introduced?

Accepted Answer

Code H21 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 H21?

Accepted Answer

The parent category for H21 is section:H15-H22 (Disorders of sclera, cornea, iris and ciliary body (H15-H22)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions should be coded separately from H21?

Accepted Answer

Code H21 has Type 2 Excludes including: sympathetic uveitis (H44.1-). These conditions are not included in H21 but can be coded together if the patient has both conditions.

H212026

Excludes212Not included here

Notes1Additional information

Is H21 a billable ICD-10 code?

What does ICD-10 code H21 mean?

When was ICD-10 code H21 introduced?

What is the parent category for ICD-10 code H21?

What conditions should be coded separately from H21?