ICD-10-CM Billable Code

Z90.5

Acquired absence of kidney

Clinical Classification Guidelines

Medical Intelligence & Overview

The condition referred to as acquired absence of a kidney, classified under ICD-10 code Z90.5, involves the loss of one kidney due to surgery, injury, or other medical reasons. This situation can influence how the body functions, as each kidney plays a vital role in filtering blood, removing waste, and maintaining fluid and electrolyte balance. While losing one kidney often does not cause significant health problems, understanding the implications and care considerations is important for affected individuals.

Causes & Symptoms

Clinical Causes: Surgical removal of a kidney (nephrectomy) due to tumors, infections, or trauma. Severe kidney injury leading to non-recoverable damage requiring removal. Medical conditions necessitating removal to prevent further health issues, such as certain cancers or severe infections. Congenital absence corrected or identified during childhood, although true congenital absence is classified differently. Other medical interventions or complications leading to intentional or unintentional kidney removal.

Key Symptoms: Typically none if the remaining kidney is healthy and functions properly. Possible signs of underlying issues if the remaining kidney’s function declines, such as swelling, high blood pressure, or changes in urination. Symptoms related to the primary reason for kidney removal, such as pain or infection.

Diagnostic & Treatment

Diagnosis Path: Diagnosis of acquired absence of a kidney is often confirmed through imaging studies like ultrasound, CT scan, or MRI, which reveal the absence of a kidney in its usual location. Medical history revealing prior kidney removal also supports the diagnosis. Kidney function tests, such as blood urea nitrogen (BUN) and creatinine levels, help assess how well the remaining kidney is functioning.

Treatment Protocols: While the removal or absence of a kidney is often a historical fact, ongoing management involves monitoring the function of the remaining kidney. Recommendations may include maintaining a healthy lifestyle with a balanced diet, staying well-hydrated, controlling blood pressure, and avoiding medications that can harm kidney function. In some cases, further interventions or treatments may be necessary if complications develop.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is Z90.5 a billable ICD-10 code?
Yes, Z90.5 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report Z90.5?
Clinical documentation must specify the nature of Acquired absence of kidney and any associated comorbidities for accurate reporting.

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