2025 Acute on Chronic Kidney Disease ICD 10 Code N18.9

• Chronic renal disease

• Chronic renal failure NOS

• Chronic renal insufficiency

• Chronic uremia NOS

• Diffuse sclerosing glomerulonephritis NOS

• bumetanide, calcium carbonate, chlorothiazide, chlortalidone, cholecalciferol, clonidine, deferoxamine, enalapril, amifostine, furosemide, hydrochlorothiazide, hydroflumethiazide, magnesium hydroxide, methyclothiazide, metoprolol, nifedipine, polythiazide, fomepizole, iron saccharate, lisinopril, magaldrate, torasemide, fosinopril, losartan, ethacrynate, valsartan, paricalcitol, irbesartan, epoetin alfa, icodextrin, calcium acetate, sevelamer, darbepoetin alfa, cinacalcet, ferumoxytol, methoxy polyethylene glycol-epoetin beta, asfotase alfa, etelcalcetide

N00-N99 :

Diseases of the genitourinary system

N17-N19 :

Acute kidney failure and chronic kidney disease

N18 :

Chronic kidney disease (CKD)

What is Chronic Kidney Disease ICD 10 (CKD ICD 10)?

Chronic Kidney Disease ICD 10 Code is N18.9. It is also known as Acute on Chronic Renal Failure ICD 10, Acute on Chronic Kidney Disease ICD 10, Chronic Renal Insufficiency ICD 10 or Chronic Renal Failure ICD 10, refers to a progressive decline in kidney function. It occurs when the kidneys can no longer filter waste from the body. The kidneys are vital in filtering waste and excess fluids from the blood, eliminating them through urine. As CKD advances, there is an accumulation of dangerous levels of fluid, electrolytes, and waste in the body. This condition can potentially lead to end-stage kidney failure, necessitating treatments such as dialysis or kidney transplantation for management.in end-stage kidney failure, which requires dialysis or a kidney transplant.

Why is CKD ICD 10 Happening?

Chronic Renal Failure ICD 10 (N18.9) occurs when a disease or condition impairs kidney function, causing damage to worsen over months or years. Common causes include:

• Type 1 or Type 2 diabetes
• High blood pressure
• Glomerulonephritis (inflammation of kidney's filtering units)
• Interstitial nephritis (inflammation of kidney tubules and surrounding structures)
• Polycystic kidney disease or other inherited conditions
• Prolonged urinary tract obstruction (e.g., enlarged prostate, kidney stones, cancers)
• Vesicoureteral reflux (urine backflow into kidneys)
• Recurrent kidney infections (pyelonephritis)

Treatment Options for Acute on Chronic Kidney Disease ICD 10

• Medications:

• Diuretic Medicines

• Dialysis:

• Hemodialysis
• Peritoneal dialysis

• Surgery:

• Kidney transplant

• Support Care:

• Dietary changes (low protein, sodium, and potassium intake)
• Lifestyle modifications (regular exercise, quitting smoking, managing stress)

Coding Suggestions for CKD ICD 10 Code N18.9

• Hypertension and Chronic Kidney Disease

• Assign a code from category I12.XX- when the patient has CKD and hypertension.
• The combination code differs if the patient has ESRD (CKD stage 6).

• Diabetes and Chronic Kidney Disease

• Assign the combination code for the appropriate type of diabetes and CKD when both are current and the etiology of the CKD is unknown or documented to be due to diabetes.

• Diabetes, Hypertension, and chronic kidney disease

• Assign the combination code for the appropriate type of diabetes and CKD. Also, assign a code from category I12.XX- when all conditions are current and etiology of the CKD is unknown or documented to be due to both diabetes and hypertension.
• If the provider specifies the cause (etiology) of the CKD to be either diabetes or hypertension, do not apply the "with" rule to the other condition. For example, report I12.- for hypertensive CKD. Do not report a combination code with diabetes if the condition is current and not linked to CKD.
• Remember to report a code to if identify the stage of chronic kidney disease.
• CKD ICD 10 (any stage) on dialysis should be reported as end-stage renal disease.

Diagnostics for Acute on Chronic Renal Failure ICD 10

• Blood Tests:

• Estimated Glomerular Filtration Rate (eGFR)
• Creatinine and Urea levels

• Urine Tests:

• Urine Albumin-Creatinine Ratio (uACR)

• Imaging Tests:

• Ultrasound
• CT Scan or MRI

• Kidney Biopsy:

• Removal of kidney tissue sample for testing

Signs and Symptoms of CKD ICD 10:

• Nausea, vomiting
• Loss of appetite
• Fatigue and weakness
• Sleep problems
• Changes in urination patterns
• Decreased mental sharpness
• Muscle cramps
• Swelling of feet and ankles
• Dry, itchy skin
• High blood pressure (hypertension)