2025 ICD-10-CM Diagnosis Code A36.0

by

Pharyngeal diphtheria

  • A36.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM A36.0 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of A36.0 – other international versions of ICD-10 A36.0 may differ.

Applicable To

  • Diphtheritic membranous angina
  • Tonsillar diphtheria

The following code(s) above A36.0 contain annotation back-references

 that may be applicable to A36.0:

  • A00-B99  Certain infectious and parasitic diseases

ICD-10-CM A36.0 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 011 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with mcc
  • 012 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with cc
  • 013 Tracheostomy for face, mouth and neck diagnoses or laryngectomy without cc/mcc
  • 154 Other ear, nose, mouth and throat diagnoses with mcc
  • 155 Other ear, nose, mouth and throat diagnoses with cc
  • 156 Other ear, nose, mouth and throat diagnoses without cc/mcc

Convert A36.0 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Code annotations containing back-references to A36.0:

  • Type 1 Excludes: J03.8

Diagnosis Index entries containing back-references to A36.0:

  • Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) I20.9
    • membranousJ05.0
      • diphtheritic A36.0
    • phlegmonousJ36
      • diphtheritic A36.0
    • diphtheritic, membranous A36.0
    • gangrenous diphtheritic A36.0
    • malignant diphtheritic A36.0
    • pultaceous, diphtheritic A36.0
  • Bretonneau’s disease or angina A36.0
  • Diphtheria, diphtheritic (gangrenous) (hemorrhagic) A36.9
    • faucial A36.0
    • pharyngeal A36.0
    • tonsillar A36.0
  • Disease, diseased – see also Syndrome
    • Bretonneau’s A36.0 (diphtheritic malignant angina)
  • Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer) I96 – see also Necrosis
    • throat – see also Pharyngitis
      • diphtheritic A36.0
  • Paralysis, paralytic (complete) (incomplete) G83.9
    • throatJ39.2
      • diphtheritic A36.0
    • uvulaK13.79
      • postdiphtheritic A36.0
  • Pharyngitis (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative) (viral) J02.9
    • diphtheritic A36.0
  • Sore
  • Tonsillitis (acute) (catarrhal) (croupous) (follicular) (gangrenous) (infective) (lacunar) (lingual) (malignant) (membranous) (parenchymatous) (phlegmonous) (pseudomembranous) (purulent) (septic) (subacute) (suppurative) (toxic) (ulcerative) (vesicular) (viral) J03.90
    • diphtheritic A36.0
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
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