ICD-10-CM N27: Small kidney of unknown cause

ICD-10-CM Diagnosis Code (2025)

Official Description for N27

Small kidney of unknown cause

Coding Notes & Guidelines for N27

Includes Notes

oligonephronia

Child Codes (More Specific Codes for N27):

About ICD-10-CM Code N27 (Small kidney of unknown cause)

ICD-10-CM code N27 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N27 became effective on October 1, 2024.

This page provides detailed information about N27 - Small kidney of unknown cause. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Small kidney of unknown cause.