N02.BRecurrent and persistent immunoglobulin A nephropathy

N02.B is the ICD-10-CM diagnosis code for recurrent and persistent immunoglobulin A nephropathy. It belongs to category N02 (recurrent and persistent hematuria), block N00-N08 (glomerular diseases) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

Within N02 (recurrent and persistent hematuria), N02.B is specifically for recurrent and persistent immunoglobulin A nephropathy. Related codes cover with minor glomerular abnormality (N02.0), with focal and segmental glomerular lesions (N02.1), with diffuse membranous glomerulonephritis (N02.2), with diffuse mesangial proliferative glomerulonephritis (N02.3), with diffuse endocapillary proliferative glomerulonephritis (N02.4), with diffuse mesangiocapillary glomerulonephritis (N02.5), with dense deposit disease (N02.6), with diffuse crescentic glomerulonephritis (N02.7) and 3 more.

To report this condition, pick the subcode that matches the documentation: N02.B1 (with glomerular lesion), N02.B2 (with focal and segmental glomerular lesion), N02.B3 (with diffuse membranoproliferative glomerulonephritis), N02.B4 (with diffuse membranous glomerulonephritis), N02.B5 (with diffuse mesangial proliferative glomerulonephritis), N02.B6 (with diffuse mesangiocapillary glomerulonephritis) and N02.B9 (nephropathy).

It was added in FY2024, effective October 1, 2023.