A18.31Billable
Tuberculous peritonitis
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A18
- Effective date
- October 1, 2026
Related codes in category A18
A18Tuberculosis of other organsA18.0Tuberculosis of bones and jointsA18.01Tuberculosis of spineYesA18.02Tuberculous arthritis of other jointsYesA18.03Tuberculosis of other bonesYesA18.09Other musculoskeletal tuberculosisYesA18.1Tuberculosis of genitourinary systemA18.10Tuberculosis of genitourinary system, unspecifiedYesA18.11Tuberculosis of kidney and ureterYesA18.12Tuberculosis of bladderYesA18.13Tuberculosis of other urinary organsYesA18.14Tuberculosis of prostateYes
Frequently asked questions
What is ICD-10 code A18.31?
A18.31 is an ICD-10-CM diagnosis code for Tuberculous peritonitis.
Is A18.31 a billable code?
Yes. A18.31 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A18.31 in?
A18.31 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A18.31 become effective?
A18.31 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A18.31?
A18.31 belongs to category A18, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.