N21.9 is the ICD-10 code for Calculus of lower urinary tract, unspecified. It is a four-character subcategory of N21 (Calculus of lower urinary tract), the most specific level in the WHO edition. It belongs to the block N20–N23 (Urolithiasis) in Chapter XIV, Diseases of the genitourinary system.
- Code type
- Subcategory (4 characters)
- Chapter
- XIV · N00–N99
- Classification
- WHO ICD-10, 2019 version
N21.9 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
N21.9Sten i de nedre urinvägarna med ospecificerad lokalisation
N21.9Sten i uspesifisert del av nedre urinveier
DN219Sten i nedre urinveje UNS
N21.9Määrittämätön alempien virtsateiden kivitauti
N21.9Stein in den unteren Harnwegen, nicht näher bezeichnet
N21.9Calcul des voies urinaires inférieures, sans précision
N21.9steen van lagere urinewegen, niet-gespecificeerd
N21.9Calculus of lower urinary tract, unspecified
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free