N04.21

Primary membranous nephropathy with nephrotic syndrome

Billable / specific

N04.21 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Idiopathic membranous nephropathy with nephrotic syndrome

Includes (from N04)

  • congenital nephrotic syndrome
  • lipoid nephrosis

Excludes1

Not coded here — never report together with this code.

  • hypertensive chronic kidney disease (I12.-) (from N04)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from N04)
  • certain infectious and parasitic diseases (A00-B99) (from N04)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N04)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N04)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from N04)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from N04)
  • neoplasms (C00-D49) (from N04)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N04)

Code also

An additional code may be needed.

  • any associated kidney failure (N17-N19). (from N04)

Also known as

  • Idiopathic membranous nephropathy with nephrotic syndrome
  • Nephropathy, membranous, idiopathic, with nephrotic syndrome
  • Nephropathy, membranous, primary, with nephrotic syndrome

Parent code

  • N04.2Nephrotic syndrome with diffuse membranous glomerulonephritisHeader

Related codes

  • N04.20Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecifiedBillable
  • N04.22Secondary membranous nephropathy with nephrotic syndromeBillable
  • N04.29Other nephrotic syndrome with diffuse membranous glomerulonephritisBillable

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