ICD-10-CM Billable Code

M1A.379

Chronic gout due to renal impairment, unspecified ankle and foot

Clinical Classification Guidelines

Medical Intelligence & Overview

Chronic gout is a long-term form of gout, a type of inflammatory arthritis caused by the buildup of uric acid crystals in the joints. When this condition is linked to kidney problems, it is termed chronic gout due to renal impairment. Specifically, this condition affects the ankle and foot regions, leading to persistent joint issues. Recognizing the links between gout, kidney health, and their effects on the lower limbs helps in understanding this complex condition.

Causes & Symptoms

Clinical Causes: Elevated levels of uric acid in the blood (hyperuricemia), often due to genetic factors or dietary influences. Chronic kidney disease or kidney impairment that reduces the body's ability to eliminate uric acid effectively. Use of certain medications, such as diuretics, that increase uric acid levels. Obesity, which can lead to increased production and decreased excretion of uric acid. Diet rich in purines, found in red meat, shellfish, and alcohol, contributing to higher uric acid production.

Key Symptoms: Persistent joint pain, especially in the ankles and feet. Swelling, redness, and warmth in affected joints. Formation of tophi, which are deposits of uric acid crystals under the skin near affected joints. Reduced joint mobility over time due to joint damage. Chronic discomfort and stiffness that worsen with periods of activity or cold weather.

Diagnostic & Treatment

Diagnosis Path: The diagnosis of chronic gout linked to renal impairment involves a combination of medical history, physical examination, and laboratory tests. Blood tests measure uric acid levels, while joint fluid analysis can identify uric acid crystals. Imaging studies such as X-rays or ultrasounds may reveal joint damage and tophi. Kidney function tests are also conducted to evaluate renal health and its contribution to uric acid buildup.

Treatment Protocols: Medications to reduce uric acid levels, such as allopurinol or febuxostat. Anti-inflammatory drugs or colchicine to manage pain and inflammation during flare-ups. Lifestyle modifications, including dietary changes to reduce purine intake and limit alcohol consumption. Weight management programs to lower overall body weight and decrease uric acid production. Monitoring and treatment of kidney function to slow disease progression and improve uric acid clearance. Regular medical check-ups to track joint health and kidney status.

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 M1A.379 a billable ICD-10 code?
Yes, M1A.379 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report M1A.379?
Clinical documentation must specify the nature of Chronic gout due to renal impairment, unspecified ankle and foot and any associated comorbidities for accurate reporting.

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