ICDcodes.org
FY2027

N07.6 vs N07.A

N07.6 and N07.A can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.

The official note, declared on N07.A
Hereditary nephropathy, not elsewhere classified (with C3 glomerulopathy) with dense deposit disease (N07.6)
N07.6

Hereditary nephropathy, not elsewhere classified with dense deposit disease

BillableUnspecified
Chapter 14
Diseases of the genitourinary system
Section
N00-N08
Use when the record says
  • Hereditary nephropathy, not elsewhere classified with C3 glomerulopathy with dense deposit disease
  • Hereditary nephropathy, not elsewhere classified with membranoproliferative glomerulonephritis, type 2
Indexed under
  • Nephropathy › hereditary NEC › with › dense deposit disease
  • Nephropathy › hereditary NEC › with › C3 › glomerulopathy › with dense deposit disease
N07.A

Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis

BillableUnspecified
Chapter 14
Diseases of the genitourinary system
Section
N00-N08
Use when the record says
  • Hereditary nephropathy, not elsewhere classified with C3 glomerulopathy
Indexed under
  • Nephropathy › hereditary NEC › with › C3 › glomerulonephritis
  • Nephropathy › hereditary NEC › with › C3 › glomerulopathy

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027