N28.85

Billable

ChapterN00–N99

Ranksubcategory

Official Description

Pyeloureteritis cystica

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 14: Diseases of the Genitourinary System (N00-N99).

General instructions are available for the parent sections:

View CH14 Notes View N25-N29 Notes View N28.8 Notes

Clinical Hierarchy

CH14Diseases of the genitourinary system (N00-N99)

N25-N29Other disorders of kidney and ureter (N25-N29)

N28Other disorders of kidney and ureter, not elsewhere classified

N28.8Other specified disorders of kidney and ureter

N28.85Pyeloureteritis cystica

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N28.85:

subcategoryN28.8

Other specified disorders of kidney and ureter

View context instructions

blockN25-N29

Other disorders of kidney and ureter (N25-N29)

View context instructions

chapterCH14

Diseases of the genitourinary system (N00-N99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to N28.85. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

3 raw paths

Infection, infected, infective (opportunistic)2 unique routes

kidney (cortex) (hematogenous)

pelvis and ureter (cystic)→N28.85

renal

pelvis and ureter (cystic)→N28.85

Pyeloureteritis cystica1 unique routes

Direct index entry→N28.85

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 689

Kidney and Urinary Tract Infections with MCC

DRG 690

Kidney and Urinary Tract Infections without MCC

DRG 791

Prematurity with Major Problems

DRG 793

Full Term Neonate with Major Problems

Cross Reference

Find Procedures (ICD-10-PCS)

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