2026 ICD-10-CM Diagnosis Code A52.75Syphilis of kidney and ureter

ICD-10-CM Codes›A00–B99›A50-A64›A52

ICD-10-CM A52.75
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

A52.75 is a billable ICD-10-CM diagnosis code for syphilis of kidney and ureter. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 689 through 690. Coders also document this condition as late syphilis of kidney. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Sexually transmitted infections (excluding HIV and hepatitis) and Urinary tract infections.

Code Identity

ICD-10-CM Code
A52.75
Billable Status
Yes — Valid for Submission
Code Describes
Syphilis of kidney and ureter
Short Description
Syphilis of kidney and ureter
Same as the full description in the CMS dataset.
Parent Code
A52.7
Other symptomatic late syphilis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionA50-A64Infections with a predominantly sexual mode of transmission
CategoryA52Late syphilis
This CodeA52.75Syphilis of kidney and ureter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Late syphilis of kidney
  • Syphilis of kidney

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Syphilitic glomerular disease

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • glomerular (in)
        • syphilis
    • Glomerular
      • disease in syphilis
    • Gumma(syphilitic)
      • kidney
    • Gumma(syphilitic)
      • ureter
    • Nephritis, nephritic(albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)
      • syphilitic (late)
    • Nephrosis, nephrotic(Epstein's) (syndrome) (congenital)
      • syphilitic (late)
    • Pyelonephritis
      • syphilitic
    • Syphilis, syphilitic(acquired)
      • kidney (late)
    • Syphilis, syphilitic(acquired)
      • late
        • kidney
    • Syphilis, syphilitic(acquired)
      • pyelonephritis (late)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF010
Sexually transmitted infections (excluding HIV and hepatitis)
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR GEN004
Urinary tract infections
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Kidney Diseases

You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert A52.75 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
095.4 Syphilis of kidney
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About A52.75Overview

Is A52.75 (Other symptomatic late syphilis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report syphilis of kidney and ureter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does A52.75 group to?

When syphilis of kidney and ureter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 689, 690, with relative weights from 0.8095 to 1.1603 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of A52.75?

Under the General Equivalence Mappings, syphilis of kidney and ureter converts to ICD-9-CM 095.4 (syphilis of kidney). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.