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ICD-10 K35.80 - Unspecified acute appendicitis

K35.80

ICD-10 Billable

Unspecified acute appendicitis

Inclusion terms:
  • Acute appendicitis NOS
  • Acute appendicitis without (localized) (generalized) peritonitis
From Chapter 11:
  • 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)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

540.9

ICD-9 Billable

Acute appendicitis without mention of peritonitis