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 periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Child Codes (4)
Related Codes(2)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(4)
Frequently Asked Questions
What is the ICD-10 code for acute appendicitis with localized peritonitis?
The ICD-10-CM code for acute appendicitis with localized peritonitis is K35.3. The full clinical description is "Acute appendicitis with localized peritonitis". K35.3 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code K35.3 mean?
ICD-10-CM code K35.3 represents “Acute appendicitis with localized peritonitis”. It is classified under Chapter 11: Diseases of the Digestive System and 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.
How does K35.3 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like acute appendicitis with localized peritonitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K35.3?
K35.3 maps to the ICD-11 code: DB10.01 (Acute appendicitis with localised peritonitis).
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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.