Question 1

What is ICD-10 code J04?

Accepted Answer

J04 is the ICD-10-CM diagnosis code for acute laryngitis and tracheitis. J04 sits in the ICD-10-CM chapter for diseases of the respiratory system (j00-j99), within the section covering acute upper respiratory infections (j00-j06).

Header codes like J04 cannot be reported on claims directly; they organize child codes that share clinical context. Coders should select the billable child code that matches the documented presentation and then verify its current source-backed HCC mapping. Do not infer a child code or risk adjustment value from the header alone.

Question 2

Is J04 an HCC code?

Accepted Answer

J04 is a non-billable header code. Choose the billable child code supported by the documentation, then check that child's current V28 mapping.

Question 3

Is J04 billable?

Accepted Answer

No. J04 is a header (non-billable) ICD-10-CM code. Header codes sit at a higher level of the diagnosis hierarchy and exist to organize a family of more specific child codes. Per ICD-10-CM coding guidelines, a header code cannot be reported on a claim as the diagnosis, coders must select a billable child code from the J04 hierarchy that matches the highest level of specificity supported by the provider's documentation. Payers reject header codes submitted as the primary diagnosis.

Question 4

Which HCC does J04 map to under V28?

Accepted Answer

J04 is not billable. Choose a billable child code before checking its V28 mapping.

Question 5

What RAF reference is published for J04?

Accepted Answer

J04 is not billable. Choose a billable child code before checking a V28 reference coefficient.

Question 6

What is the V28 vs V24 difference for J04?

Accepted Answer

J04 is not billable. Choose a billable child code before comparing V28 with a historical V24 reference.

Question 7

What documentation supports J04?

Accepted Answer

J04 is not billable. Choose the supported billable child code before checking mapping or documentation requirements.

HCC Buddy Code Card

J04

Get the V28 mapping + MEAT cheat sheet

What This Code Means

Excludes 1, Do NOT code together

Excludes 2, Not included here, may code separately

Use Additional Code

Code Also

Child Codes

Code Hierarchy

Work J04 in HCC Buddy

J04 ICD-10-CM Code: Acute laryngitis and tracheitis