Question 1

Is T18 a billable ICD-10 code?

Accepted Answer

No, T18 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 T18 mean?

Accepted Answer

ICD-10-CM code T18 represents Foreign body in alimentary tract. 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 T18 introduced?

Accepted Answer

Code T18 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 T18?

Accepted Answer

The parent category for T18 is section:T15-T19 (Effects of foreign body entering through natural orifice (T15-T19)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions should be coded separately from T18?

Accepted Answer

Code T18 has Type 2 Excludes including: foreign body in pharynx (T17.2-). These conditions are not included in T18 but can be coded together if the patient has both conditions.

Question 6

Does T18 require a 7th character extension?

Accepted Answer

Yes, T18 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., T18XXA for initial encounter). The extension indicates whether this is an initial visit, follow-up, or treatment for a late effect.

T182026

Excludes27Not included here

Use Additional Code2Add code for detail

Notes2Additional information

7th Character Extensions3Encounter type specifiers