K38.9 Disease of appendix, unspecified

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 543.9 Other and unspecified diseases of appendix (approximate)

Diagnosis Index entries for K38.9

• Disease, diseased › appendix

Nearby codes

• K38.0 Hyperplasia of appendix
• K38.1 Appendicular concretions
• K38.2 Diverticulum of appendix
• K38.3 Fistula of appendix
• K38.8 Other specified diseases of appendix
• K38.9 Disease of appendix, unspecified (this code)