ICD Code K37

ICD code K37 is unspecified appendicitis, meaning inflammation of the appendix without further details about the type or stage.

1. Acute onset of right lower quadrant abdominal pain

2. Tenderness at McBurney’s point

3. Rebound tenderness or guarding on physical examination

4. Nausea and/or vomiting

5. Low-grade fever

6. Leukocytosis (elevated white blood cell count)

7. Absence of definitive imaging or clinical findings to specify appendicitis as perforated, with abscess, or with peritonitis

8. No clear evidence of chronic or recurrent appendicitis

9. No alternative diagnosis explaining the symptoms

Relevant CPT codes for ICD code K37 include:

- 44950 (Appendectomy)

- 44960 (Appendectomy; for ruptured appendix with abscess or generalized peritonitis)

- 44970 (Laparoscopy, surgical, appendectomy)

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