Question 1

Is T58 a billable ICD-10 code?

Accepted Answer

No, T58 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 T58 mean?

Accepted Answer

ICD-10-CM code T58 represents Toxic effect of carbon monoxide. 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 T58 introduced?

Accepted Answer

Code T58 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 T58?

Accepted Answer

The parent category for T58 is section:T51-T65 (Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

Does T58 require a 7th character extension?

Accepted Answer

Yes, T58 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., T58XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

T582026

Excludes11Not coded together

Excludes22Not included here

Use Additional Code5Add code for detail

Notes3Additional information

Includes2Included conditions

7th Character Extensions3Encounter type specifiers

Is T58 a billable ICD-10 code?

What does ICD-10 code T58 mean?

When was ICD-10 code T58 introduced?

What is the parent category for ICD-10 code T58?

Does T58 require a 7th character extension?