Chapter 10

J00–J99: Diseases of the Respiratory System

Diseases of the Respiratory System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • smoke inhalation (T59.81-)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Use Additional Code
  • code, where applicable, to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
All CodesBillable Only
Browse by Section11 Sections
Internal Codes
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  • J00—

    Acute nasopharyngitis [common cold]

  • J01—

    Acute sinusitis

  • J01.0—

    Acute maxillary sinusitis

  • J01.00—

    Acute maxillary sinusitis, unspecified

  • J01.01—

    Acute recurrent maxillary sinusitis

  • J01.1—

    Acute frontal sinusitis

  • J01.10—

    Acute frontal sinusitis, unspecified

  • J01.11—

    Acute recurrent frontal sinusitis

  • J01.2—

    Acute ethmoidal sinusitis

  • J01.20—

    Acute ethmoidal sinusitis, unspecified

  • J01.21—

    Acute recurrent ethmoidal sinusitis

  • J01.3—

    Acute sphenoidal sinusitis

  • J01.30—

    Acute sphenoidal sinusitis, unspecified

  • J01.31—

    Acute recurrent sphenoidal sinusitis

  • J01.4—

    Acute pansinusitis

  • J01.40—

    Acute pansinusitis, unspecified

  • J01.41—

    Acute recurrent pansinusitis

  • J01.8—

    Other acute sinusitis

  • J01.80—

    Other acute sinusitis

  • J01.81—

    Other acute recurrent sinusitis

  • J01.9—

    Acute sinusitis, unspecified

  • J01.90—

    Acute sinusitis, unspecified

  • J01.91—

    Acute recurrent sinusitis, unspecified

  • J02—

    Acute pharyngitis

  • J02.0—

    Streptococcal pharyngitis

  • J02.8—

    Acute pharyngitis due to other specified organisms

  • J02.9—

    Acute pharyngitis, unspecified

  • J03—

    Acute tonsillitis

  • J03.0—

    Streptococcal tonsillitis

  • J03.00—

    Acute streptococcal tonsillitis, unspecified

  • J03.01—

    Acute recurrent streptococcal tonsillitis

  • J03.8—

    Acute tonsillitis due to other specified organisms

  • J03.80—

    Acute tonsillitis due to other specified organisms

  • J03.81—

    Acute recurrent tonsillitis due to other specified organisms

  • J03.9—

    Acute tonsillitis, unspecified

  • J03.90—

    Acute tonsillitis, unspecified

  • J03.91—

    Acute recurrent tonsillitis, unspecified

  • J04—

    Acute laryngitis and tracheitis

  • J04.0—

    Acute laryngitis

  • J04.1—

    Acute tracheitis

  • J04.10—

    Acute tracheitis without obstruction

  • J04.11—

    Acute tracheitis with obstruction

  • J04.2—

    Acute laryngotracheitis

  • J04.3—

    Supraglottitis, unspecified

  • J04.30—

    Supraglottitis, unspecified, without obstruction

  • J04.31—

    Supraglottitis, unspecified, with obstruction

  • J05—

    Acute obstructive laryngitis [croup] and epiglottitis

  • J05.0—

    Acute obstructive laryngitis [croup]

  • J05.1—

    Acute epiglottitis

  • J05.10—

    Acute epiglottitis without obstruction

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