ICDcodes.org
FY2027

B00.2 vs J02.8

B00.2 and J02.8 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.

The official note, declared on J02.8
acute pharyngitis due to herpes [simplex] virus (B00.2)
B00.2

Herpesviral gingivostomatitis and pharyngotonsillitis

Billable
Chapter 1
Certain infectious and parasitic diseases
Section
B00-B09
Use when the record says
  • Herpesviral pharyngitis
Indexed under
  • Pharyngotonsillitis, herpesviral
  • Gingivostomatitis › herpesviral
  • Herpes, herpesvirus, herpetic › gingivostomatitis
  • Herpes, herpesvirus, herpetic › pharyngitis, pharyngotonsillitis
  • Herpes, herpesvirus, herpetic › stomatitis
J02.8

Acute pharyngitis due to other specified organisms

BillableUnspecified
Chapter 10
Diseases of the respiratory system
Section
J00-J06
Indexed under
  • Pharyngitis › pneumococcal (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)
  • Pharyngitis › specified organism NEC (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)
  • Pharyngitis › staphylococcal (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)
  • Pharyngitis › viral NEC (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)
  • Sore › throat › viral NEC

These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027