K35.3
Non-billableAcute appendicitis with localized peritonitis
Acute appendicitis with localized peritonitis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- 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)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code K35.3?
ICD-10-CM code K35.3 represents "Acute appendicitis with localized peritonitis". It is a non-billable header code — use a more specific child code for billing purposes.
Is K35.3 a billable code?
No, K35.3 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under K35.3.
What chapter is K35.3 in?
K35.3 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What are the subcategories under K35.3?
K35.3 has 4 child codes, including: K35.30 (Acute appendicitis with loc peritonitis, w/o perf or gangr), K35.31 (Acute appendicitis with loc peritonitis and gangr, w/o perf), K35.32 (Ac appendicitis w perf, loc peritonitis, & gangr, w/o abscs), K35.33 (Ac appendicitis with perf, loc peritonitis, and gangr, wbscs).
What are the UMLS CUIs for K35.3?
K35.3 is linked to 1 UMLS Concept Unique Identifier: C2887682. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.