A36.9Billable
Diphtheria, unspecified
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A36
- Effective date
- October 1, 2026
Related codes in category A36
A36DiphtheriaA36.0Pharyngeal diphtheriaYesA36.1Nasopharyngeal diphtheriaYesA36.2Laryngeal diphtheriaYesA36.3Cutaneous diphtheriaYesA36.8Other diphtheriaA36.81Diphtheritic cardiomyopathyYesA36.82Diphtheritic radiculomyelitisYesA36.83Diphtheritic polyneuritisYesA36.84Diphtheritic tubulo-interstitial nephropathyYesA36.85Diphtheritic cystitisYesA36.86Diphtheritic conjunctivitisYes
Frequently asked questions
What is ICD-10 code A36.9?
A36.9 is an ICD-10-CM diagnosis code for Diphtheria, unspecified.
Is A36.9 a billable code?
Yes. A36.9 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A36.9 in?
A36.9 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A36.9 become effective?
A36.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A36.9?
A36.9 belongs to category A36, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.