2025 ICD-10-CM Diagnosis Code N18.4

Chronic kidney disease, stage 4 (severe)

  • N18.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2025 edition of ICD-10-CM N18.4 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of N18.4 – other international versions of ICD-10 N18.4 may differ.

The following code(s) above N18.4 contain annotation back-references

 that may be applicable to N18.4:

  • N00-N99  Diseases of the genitourinary system
  • N17-N19  Acute kidney failure and chronic kidney disease
  • N18  Chronic kidney disease (CKD)

Approximate Synonyms

  • Anemia co-occurrent and due to chronic kidney disease stage 4
  • Anemia in chronic kidney disease stage 4
  • Benign htn heart and ckd, 4 (gfr15-29)
  • Benign htn heart and ckd, 4 (gfr15-29), w chf
  • Benign hypertensive heart and chronic renal disease stage 4
  • Benign hypertensive heart and chronic renal disease stage 4 with congestive heart failure
  • Benign hypertensive heart disease and chronic renal disease stage 4
  • Chronic kidney disease stage 4
  • Chronic kidney disease stage 4 associated with type 2 diabetes mellitus
  • Chronic kidney disease stage 4 due to benign hypertension
  • Chronic kidney disease stage 4 due to drug induced diabetes
  • Chronic kidney disease stage 4 due to hypertension
  • Chronic kidney disease stage 4 due to secondary diabetes
  • Chronic kidney disease stage 4 due to type 1 diabetes mellitus
  • Chronic kidney disease stage 4 due to type 2 diabetes mellitus
  • Chronic kidney disease, severe
  • Diabetes type 1, severe chronic kidney disease
  • Diabetes type 2 with severe kidney disease
  • Diabetes type 2, severe chronic kidney disease
  • Drug induced diabetes, severe chronic kidney disease
  • Hypertension in chronic kidney disease stage 4 due to type 2 diabetes mellitus
  • Hypertensive chronic kidney disease, severe
  • Hypertensive heart and chronic kidney disease stage 4
  • Hypertensive heart and chronic kidney disease stage 4 with congestive heart failure
  • Hypertensive kidney and heart disease
  • Hypertensive, severe chronic kidney disease
  • Malignant htn heart and ckd, (gfr15-29)
  • Malignant hypertensive chronic kidney disease stage 4
  • Malignant hypertensive heart and chronic kidney disease stage 4
  • Secondary diabetes with chronic kidney disease
  • Severe chronic kidney failure with hypertension

ICD-10-CM N18.4 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 008 Simultaneous pancreas and kidney transplant
  • 019 Simultaneous pancreas and kidney transplant with hemodialysis
  • 682 Renal failure with mcc
  • 683 Renal failure with cc
  • 684 Renal failure without cc/mcc

Convert N18.4 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Code annotations containing back-references to N18.4:

  • Use Additional: I12.9, I13.10

Diagnosis Index entries containing back-references to N18.4:

  • Disease, diseased – see also Syndrome
    • kidney (functional) (pelvis) N28.9
      • chronicN18.9
        • stage 4 N18.4 (severe)
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