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ICD-10-CM 2027

ICD-10 code for focal infection

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Infection, infected, infective (opportunistic) › focal”. Page updated September 29, 2026.

About coding focal infection

The official ICD-10-CM index doesn't give a single default code for focal infection; the code depends on the details below.

More specific focal infection codes (official index)

  • teeth (pulpal origin) K04.7 — Periapical abscess without sinus
  • tonsils J35.01 — Chronic tonsillitis

Common questions about focal infection ICD-10 codes

What is the ICD-10 code for teeth focal infection?

K04.7 — Periapical abscess without sinus.

What is the ICD-10 code for tonsils focal infection?

J35.01 — Chronic tonsillitis.