A18.39
Billable codeRetroperitoneal tuberculosis
The ICD-10 code for retroperitoneal tuberculosis is A18.39.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Tuberculosis of mesenteric glands
- Tuberculosis of retroperitoneal (lymph glands)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- A18.31Tuberculous peritonitis
- A18.32Tuberculous enteritis
- A18.39Retroperitoneal tuberculosis
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 01480Approximate match
- 01481Approximate match
- 01482Approximate match
- 01483Approximate match
- 01484Approximate match
- 01485Approximate match
- 01486Approximate match
Associated MS-DRGs
A18.39 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 371Major Gastrointestinal Disorders and Peritoneal Infections with MCC
- DRG 372Major Gastrointestinal Disorders and Peritoneal Infections with CC
- DRG 373Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC