Occult glomerulonephritis coding should first distinguish its clinical symptoms,according to different clinical symptoms to choose the appropriate leading word in the third volume to find,and then check the first volume.According to ICD-10 codes,the clinical manifestation was hematuria,which was classified as N02,asymptomatic proteinuria,which was classified as N06,asymptomatic hematuria and proteinuria,which was classified as N03.Secondly,the direct relationship between pathological classification and ICD-10 suborder should be clarified.In addition,the accurate coding of latent glomerulonephritis needs to pay attention to distinguish the following related concepts,one is idiopathic hematuria and proteinuria,which need to distinguish whether they are of glomerular origin,the other is to master IgA nephropathy,the main clinical manifestation is hematuria,the diagnosis was made by renal biopsy immunopathology.Although the coding was also classified as N02,it was different from hematuria in occult nephritis,the third is to distinguish the concepts of"Membranous","Mesangial hyperplasia"and"Membranous hyperplasia"in pathological reports.To master the above concepts clearly,to clarify the coding ideas of latent nephritis,to strengthen the study of coders,to standardize the filling of diagnosis on the front page of clinical medical records,we can correctly code and improve the accuracy and quality of coding.