All ICD10 Codes

N22

Billable
ChapterN00–N99
Rankcategory
Official Description

Calculus of urinary tract in diseases classified elsewhere

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).

CH14 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Code First

Clinical Hierarchy

CH14Diseases of the genitourinary system (N00-N99)
N20-N23Urolithiasis (N20-N23)
N22Calculus of urinary tract in diseases classified elsewhere

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N22:

chapterCH14
Diseases of the genitourinary system (N00-N99)
View context instructions

MS-DRG Classification

2026 v43.1

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

DRG 693
Urinary Stones with MCC
DRG 694
Urinary Stones without MCC

Cross Reference

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