Question 1

Is C79 a billable ICD-10 code?

Accepted Answer

No, C79 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 C79 mean?

Accepted Answer

ICD-10-CM code C79 represents Secondary malignant neoplasm of other and unspecified sites. 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 C79 introduced?

Accepted Answer

Code C79 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 C79?

Accepted Answer

The parent category for C79 is section:C76-C80 (Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)). This hierarchical classification helps organize related diagnoses for more accurate coding.

Question 5

What conditions are excluded from C79?

Accepted Answer

Code C79 has Type 1 Excludes (mutually exclusive conditions) including: secondary carcinoid tumors (C7B.-); secondary neuroendocrine tumors (C7B.-). These conditions cannot be coded together with C79 as they represent different diagnoses.

C792026

Excludes12Not coded together

Notes8Additional information

Is C79 a billable ICD-10 code?

What does ICD-10 code C79 mean?

When was ICD-10 code C79 introduced?

What is the parent category for ICD-10 code C79?

What conditions are excluded from C79?