ICD-10-CM Alphabetic Index · FY 2027 13 Entries
Diphtheria in the ICD-10-CM Index ICD-10-CM
The main term Diphtheria, diphtheritic (gangrenous) (hemorrhagic) carries 13 index entries pointing to 8 ICD-10-CM codes. The default entry is A36.9, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027
13
Index Entries
8
Codes Referenced
A36.9
Default Code
D
Letter
13 of 13 shown
ICD-10-CM
Index Entries Under Diphtheria 13 entries · 8 codes
Diphtheria, diphtheritic (gangrenous) (hemorrhagic) A36.9
carrier (suspected) Z22.2
cutaneous A36.3
faucial A36.0
infection of wound A36.3
laryngeal A36.2
myocarditis A36.81
nasal, anterior A36.89
nasopharyngeal A36.1
neurological complication A36.89
pharyngeal A36.0
specified site NEC A36.89
tonsillar A36.0
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.
