Question 1

Is Y35.21 a billable ICD-10 code?

Accepted Answer

No, Y35.21 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 Y35.21 mean?

Accepted Answer

ICD-10-CM code Y35.21 represents Legal intervention involving injury by tear gas. 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 Y35.21 introduced?

Accepted Answer

Code Y35.21 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 Y35.21?

Accepted Answer

The parent category for Y35.21 is Y35.2 (Legal intervention involving gas). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

Does Y35.21 require a 7th character extension?

Accepted Answer

Yes, Y35.21 requires a 7th character to specify the encounter type. Available extensions include: A (initial encounter), D (subsequent encounter), S (sequela). Use "X" as a placeholder to fill empty positions before the 7th character (e.g., Y35.21XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

Y35.212026

Notes3Additional information

Includes1Included conditions

7th Character Extensions3Encounter type specifiers

Is Y35.21 a billable ICD-10 code?

What does ICD-10 code Y35.21 mean?

When was ICD-10 code Y35.21 introduced?

What is the parent category for ICD-10 code Y35.21?

Does Y35.21 require a 7th character extension?