N27.0
BillableSmall kidney, unilateral
Small kidney, unilateral
Coding Notes
Includes
Conditions included under this code
- oligonephronia
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •disorders of kidney and ureter with urolithiasisN20-N23
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(9)
Clinical Terms
- Unilateral small kidney
- Small left kidney
- Small right kidney
- Small kidney
Frequently Asked Questions
What is the ICD-10 code for small kidney, unilateral?
The ICD-10-CM code for small kidney, unilateral is N27.0. The full clinical description is "Small kidney, unilateral". N27.0 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code N27.0 mean?
ICD-10-CM code N27.0 represents “Small kidney, unilateral”. It is classified under Chapter 14: Diseases of the Genitourinary System and is a billable/specific code that can be used on a claim.
Is N27.0 a billable code?
Yes, N27.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is N27.0 in?
N27.0 is in Chapter 14: Diseases of the Genitourinary System (codes N00-N99).
What SNOMED CT codes does N27.0 map to?
N27.0 maps to 3 SNOMED CT concepts: 236448000, 765156001, 765157005. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for N27.0?
N27.0 is linked to 1 UMLS Concept Unique Identifier: C0156245. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does N27.0 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like small kidney, unilateral affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of N27.0?
N27.0 maps to the ICD-11 code: MF54.2 (Small kidney).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.