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2025 ICD-10-CM code L23.0

Allergic contact dermatitis due to metals.

Do not use L23.0 if the dermatitis is caused by a substance taken internally or if it's due to irritation rather than allergy. Confirm with patch testing if possible.

The diagnosis must be supported by clinical findings and, ideally, confirmed by patch testing to demonstrate an allergic reaction to a specific metal.

In simple words: Skin inflammation caused by an allergic reaction to contact with metals like chromium or nickel.

Allergic contact dermatitis due to metals. Allergic contact dermatitis due to chromium. Allergic contact dermatitis due to nickel.

Example 1: A patient presents with itchy, red rash on their wrist after wearing a new watch with a nickel clasp. After patch testing confirms nickel allergy, L23.0 is used., A construction worker develops a persistent rash on their hands.Testing reveals an allergy to chromium in the cement they handle regularly, confirming the diagnosis as allergic contact dermatitis (L23.0)., A patient with known metal sensitivities develops a rash on their earlobes after wearing earrings.If the rash is confirmed as allergic contact dermatitis from the metal in the earrings, L23.0 would be applied.

Type, location, and cause of the dermatitis. Positive patch test results for specific metals are crucial for confirming the diagnosis.

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