Table 10.
Differences in Disease Capture by Rank for ICD-9-CM and ICD-10-CM for Causes of Mortality: Nephritis
| Diseases Related to Mortality: Nephritis | ICD-9-CM Rank | ICD-10-CM Rank | Explanation |
| Acute nephritic syndrome | 2 | 5 | I-10 terminology different and much more specific |
| Rapidly progressive nephritic syndrome | 1 | 5 | No detailed category for this in I-9 |
| Recurrent and persistent hematuria | 1 | 5 | No specific code for this in I9, only states “hematuria,” I-10 more specific with additional codes |
| Chronic nephritic syndrome | 2 | 5 | I-10 terminology different and much more specific |
| Nephritic syndrome | 4 | 5 | I-10 terminology different and more specific |
| Unspecified nephritic syndrome | 4 | 5 | I-10 terminology different and more specific |
| Isolated proteinuria with specified morphological lesion | 1 | 5 | No specific code for this in I-9 only states “proteinuria,” I-10 more specific with additional codes |
| Chronic renal failure | 4 | 3 | More specificity in I-9 but chronic renal disease is now used with different stages and this change was made after the development of I-10 |
| Unspecified contracted kidney | 3 | 5 | Codes similar except “page kidney” no code in I-9 |
| Hereditary nephropathy, NEC | 1 | 5 | No specific code for this in I-9, only states “other specified congenital abnormalities,” I-10 more specific with additional codes |
5= Diagnosis is fully captured by the code/codes
4=Diagnosis is almost fully captured by the code/codes
3=Diagnosis is partially captured by the code/codes
2=Diagnosis is less than partially captured by the code/codes
1=Diagnosis is not captured by the code/codes