N03.1

Chronic nephritic syndrome with focal and segmental glomerular lesions

Billable / specific

N03.1 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

  • Chronic nephritic syndrome with focal and segmental hyalinosis
  • Chronic nephritic syndrome with focal and segmental sclerosis
  • Chronic nephritic syndrome with focal glomerulonephritis

Includes (from N03)

  • chronic glomerular disease
  • chronic glomerulonephritis
  • chronic nephritis

Excludes1

Not coded here — never report together with this code.

  • hypertensive chronic kidney disease (I12.-) (from N03)
  • chronic tubulo-interstitial nephritis (N11.-) (from N03)
  • diffuse sclerosing glomerulonephritis (N05.8-) (from N03)
  • nephritic syndrome NOS (N05.-) (from N03)

Excludes2

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

  • certain conditions originating in the perinatal period (P04-P96) (from N03)
  • certain infectious and parasitic diseases (A00-B99) (from N03)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N03)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N03)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from N03)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from N03)
  • neoplasms (C00-D49) (from N03)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N03)

Code also

An additional code may be needed.

  • any associated kidney failure (N17-N19). (from N03)

Also known as

  • Chronic nephritic syndrome with focal and segmental hyalinosis
  • Chronic nephritic syndrome with focal and segmental sclerosis
  • Chronic nephritic syndrome with focal glomerulonephritis
  • Nephritis, nephritic, chronic, with focal and segmental glomerular lesions

Parent code

  • N03Chronic nephritic syndromeHeader

Related codes

  • N03.0Chronic nephritic syndrome with minor glomerular abnormalityBillable
  • N03.2Chronic nephritic syndrome with diffuse membranous glomerulonephritisBillable
  • N03.3Chronic nephritic syndrome with diffuse mesangial proliferative glomerulonephritisBillable
  • N03.4Chronic nephritic syndrome with diffuse endocapillary proliferative glomerulonephritisBillable
  • N03.5Chronic nephritic syndrome with diffuse mesangiocapillary glomerulonephritisBillable
  • N03.6Chronic nephritic syndrome with dense deposit diseaseBillable
  • N03.7Chronic nephritic syndrome with diffuse crescentic glomerulonephritisBillable
  • N03.8Chronic nephritic syndrome with other morphologic changesBillable
  • N03.9Chronic nephritic syndrome with unspecified morphologic changesBillable
  • N03.AChronic nephritic syndrome with C3 glomerulonephritisBillable

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