J4BBillableNew this fiscal year
Pulmonary mycetoma
- Chapter
- 10. Diseases of the respiratory system
- Category
- J4B
- Effective date
- October 1, 2026
Frequently asked questions
What is ICD-10 code J4B?
J4B is an ICD-10-CM diagnosis code for Pulmonary mycetoma.
Is J4B a billable code?
Yes. J4B is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is J4B in?
J4B falls under Chapter 10: Diseases of the respiratory system.
When did J4B become effective?
J4B has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.