K35.80
BillableUnspecified acute appendicitis
Unspecified acute appendicitis
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Acute appendicitis NOS
- Acute appendicitis without (localized) (generalized) peritonitis
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
Related Codes(1)
Also Known As / Clinical Terms(46)
SNOMED CT
- Acute obstructive appendicitis4998000
- Obstructive appendicitis4998000
- Purulent appendicitis42640003
- Suppurative appendicitis42640003
- Purulent enteritis47941007
- Acute gangrenous appendicitis50846009
- Abscess of appendix62224002
- Appendiceal abscess62224002
- Appendicular abscess62224002
- Acute appendicitis without peritonitis72048003
- Inflamed acute appendicitis without peritonitis72048003
- Acute fulminating appendicitis84534001
- Acute appendicitis85189001
- Acute suppurative appendicitis235770006
- Acute appendicitis with appendix abscess266439004
- Complicated appendicitis418171008
- Acute phlegmonous appendicitis735591005
- Gangrenous appendicitis1145117000
UMLS
Clinical Terms
- Obstructive appendicitis
- Acute gangrenous appendicitis
- Acute appendicitis without peritonitis
- Acute appendicitis NOS
- Acute suppurative appendicitis
- Acute appendicitis (disorder)
- Purulent enteritis
- Inflamed acute appendicitis without peritonitis
- Purulent appendicitis
- Acute appendicitis without (localized) (generalized) peritonitis
- Suppurative appendicitis
- Complicated appendicitis
- appendicitis acute
- Acute fulminating appendicitis
- Abscess of appendix
- Appendicular abscess
- Appendiceal abscess
- Gangrenous appendicitis
- Acute obstructive appendicitis
- Acute phlegmonous appendicitis
- Acute appendicitis with appendix abscess
Frequently Asked Questions
What is the ICD-10 code for unspecified acute appendicitis?
The ICD-10-CM code for unspecified acute appendicitis is K35.80. The full clinical description is "Unspecified acute appendicitis". K35.80 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code K35.80 mean?
ICD-10-CM code K35.80 represents “Unspecified acute appendicitis”. It is classified under Chapter 11: Diseases of the Digestive System and is a billable/specific code that can be used on a claim.
Is K35.80 a billable code?
Yes, K35.80 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is K35.80 in?
K35.80 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What SNOMED CT codes does K35.80 map to?
K35.80 maps to 13 SNOMED CT concepts: 62224002, 85189001, 266439004, 72048003, 84534001, and 8 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for K35.80?
K35.80 is linked to 2 UMLS Concept Unique Identifiers: C0085693, C2887684. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K35.80 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified acute appendicitis 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 K35.80?
There is no direct ICD-11 mapping available for K35.80 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.