Departments of Anesthesiology and Biostatistics | University of Michigan

ICD mappings

ICD code Type Description Phenome
K35 ICD10CM Acute appendicitis MGI
K35.2 ICD10CM Acute appendicitis with generalized peritonitis MGI
K35.3 ICD10CM Acute appendicitis with localized peritonitis MGI
K35.8 ICD10CM Other and unspecified acute appendicitis MGI
K35.80 ICD10CM Unspecified acute appendicitis MGI
K35.89 ICD10CM Other acute appendicitis MGI
K36 ICD10CM Other appendicitis MGI
K37 ICD10CM Unspecified appendicitis MGI
K38 ICD10CM Other diseases of appendix MGI
K38.0 ICD10CM Hyperplasia of appendix MGI
K38.1 ICD10CM Appendicular concretions MGI
K38.2 ICD10CM Diverticulum of appendix MGI
K38.3 ICD10CM Fistula of appendix MGI
K38.8 ICD10CM Other specified diseases of appendix MGI
K38.9 ICD10CM Disease of appendix, unspecified MGI
540.0 ICD9CM Acute appendicitis with generalized peritonitis MGI
540.1 ICD9CM Acute appendicitis with peritoneal abscess MGI
540.9 ICD9CM Acute appendicitis without mention of peritonitis MGI
541 ICD9CM Appendicitis, unqualified MGI
542 ICD9CM Other appendicitis MGI
543.0 ICD9CM Hyperplasia of appendix (lymphoid) MGI
543.9 ICD9CM Other and unspecified diseases of appendix MGI
K35.0 ICD10 K35.0 Acute appendicitis with generalised peritonitis UKB
K35.1 ICD10 K35.1 Acute appendicitis with peritoneal abscess UKB
K35.9 ICD10 K35.9 Acute appendicitis, unspecified UKB
K36 ICD10 K36 Other appendicitis UKB
K37 ICD10 K37 Unspecified appendicitis UKB
K38.0 ICD10 K38.0 Hyperplasia of appendix UKB
K38.1 ICD10 K38.1 Appendicular concretions UKB
K38.2 ICD10 K38.2 Diverticulum of appendix UKB
K38.8 ICD10 K38.8 Other specified diseases of appendix UKB
K38.9 ICD10 K38.9 Disease of appendix, unspecified UKB
540 ICD9 540 Acute appendicitis UKB
543 ICD9 543 Other diseases of appendix UKB
543.9 ICD9 5439 Other diseases of appendix UKB

This page is mainly a phenotype dictionary entry. When you are trying to find candidate PRS models, go to the Scores table, search by trait or exposure name, and then use the score-detail and PheWAS pages for model-specific follow-up.

Found a bug?

Report a PRSweb issue

Open an email draft

This uses your default mail app and includes the current page URL automatically.