N80.549 Endometriosis of the appendix, unspecified depth

Billable ICD-10-CM code, FY2026.

Applicable to

• Endometriosis of the appendix NOS

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Code annotations containing back-references to N80.549

Back-references to N80

• Type 1 Excludes: N85 Other noninflammatory disorders of uterus, except cervix ("endometriosis (N80.-)")

Diagnosis Index entries for N80.549

• Endometriosis › appendix

Nearby codes

• N80.532 Deep endometriosis of the cecum
• N80.539 Endometriosis of the cecum, unspecified depth
• N80.54 Endometriosis of the appendix
• N80.541 Superficial endometriosis of the appendix
• N80.542 Deep endometriosis of the appendix
• N80.549 Endometriosis of the appendix, unspecified depth (this code)
• N80.55 Endometriosis of other parts of the colon
• N80.551 Superficial endometriosis of other parts of the colon
• N80.552 Deep endometriosis of other parts of the colon
• N80.559 Endometriosis of other parts of the colon, unspecified depth
• N80.56 Endometriosis of the small intestine