K35
Non-billableAcute appendicitis
Acute appendicitis
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 (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code K35?
ICD-10-CM code K35 represents "Acute appendicitis". It is a non-billable header code — use a more specific child code for billing purposes.
Is K35 a billable code?
No, K35 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under K35.
What chapter is K35 in?
K35 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What are the subcategories under K35?
K35 has 3 child codes, including: K35.2 (Acute appendicitis with generalized peritonitis), K35.3 (Acute appendicitis with localized peritonitis), K35.8 (Other and unspecified acute appendicitis).
What are the UMLS CUIs for K35?
K35 is linked to 1 UMLS Concept Unique Identifier: C0085693. 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.