Z90.5 Acquired absence of kidney

ICD10CM code

#### Name of the Condition
- Acquired Absence of Kidney

#### Summary
- Acquired Absence of Kidney refers to a condition in which an individual has lost one or both kidneys due to surgery, injury, or other medical conditions. This is noted under the ICD code Z90.5.

#### Causes
- The absence of a kidney can result from nephrectomy (surgical removal of a kidney), severe trauma or injury, or as a complication from medical conditions like cancer or infections.

#### Risk Factors
- Undergoing major abdominal surgeries, history of kidney cancer, traumatic injuries, and certain inherited conditions that require nephrectomy.

#### Symptoms
- Often asymptomatic if one kidney is absent. Symptoms may only appear if remaining kidney function is compromised, potentially showing as fatigue, changes in urination patterns, or swelling in legs and ankles.

#### Diagnosis
- Diagnosed through imaging tests like ultrasound or CT scan, which visually confirm the absence of a kidney. Patient medical history and prior surgical records are also reviewed.

#### Treatment Options
- If one kidney is absent and the remaining kidney functions normally, no specific treatment may be needed. In cases where kidney function is affected, possible treatments include:
  - Blood pressure management and dietary adjustments to reduce kidney strain.
  - Dialysis or kidney transplant if kidney function is significantly compromised.

#### Prognosis and Follow-Up
- Many individuals with an acquired absence of one kidney lead normal, healthy lives, assuming the remaining kidney functions well. Regular monitoring of kidney function through blood tests is recommended.

#### Complications
- Potential complications include hypertension, proteinuria, and chronic kidney disease if the remaining kidney is under strain or affected by disease.

#### Lifestyle & Prevention
- A healthy lifestyle with a balanced diet, regular exercise, and adequate hydration can support kidney health. Avoiding substances that can harm the kidneys, like excessive NSAIDs and alcohol, is advised.

#### When to Seek Professional Help
- Seek medical attention if experiencing symptoms like persistent fatigue, swelling, or changes in urination patterns, as these may indicate compromised kidney function.

#### Additional Resources
- National Kidney Foundation: [www.kidney.org](https://www.kidney.org)
- American Association of Kidney Patients: [www.aakp.org](https://www.aakp.org)

#### Tips for Medical Coders
- Ensure the accurate association of ICD code Z90.5 with conditions noted in patient history or surgical records. Verify coding accuracy by cross-referencing with documented clinical information, and avoid mixing with congenital absence of kidney codes.

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