ICD-10-CM · Chapter 1 · A00–B99
A36
Diphtheria
Certain infectious and parasitic diseases
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- A36
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A36
- Specificity
- 3 characters
How coders use this code
ICD-10-CM A36 is a category (header) for diphtheria. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in A36
- A36.0Pharyngeal diphtheria
- A36.1Nasopharyngeal diphtheria
- A36.2Laryngeal diphtheria
- A36.3Cutaneous diphtheria
- A36.8Other diphtheria
- A36.81Diphtheritic cardiomyopathy
- A36.82Diphtheritic radiculomyelitis
- A36.83Diphtheritic polyneuritis
- A36.84Diphtheritic tubulo-interstitial nephropathy
- A36.85Diphtheritic cystitis
- A36.86Diphtheritic conjunctivitis
- A36.89Other diphtheritic complications
- A36.9Diphtheria, unspecified
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