Lichenoid Keratosis

SWsibemom

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We are having a discussion in the office regarding what the appropriate code is for lichenoid keratosis. Everyone has a different opinion as to how to code it and can’t come to a consensus. How do you code lichenoid keratosis?
 
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Holden, ME
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L43.9 - Lichen planus, unspecified

From: https://www.visualdx.com/visualdx/diagnosis/lichenoid+keratosis?moduleId=101&diagnosisId=51807

“Lichenoid keratosis, also known as benign lichenoid keratosis (BLK), solitary lichenoid keratosis (SLK), lichen planus-like keratosis (LPLK), solitary lichen planus, or involuting lichenoid plaque, is an asymptomatic or mildly pruritic pink papule or plaque commonly found on sun-exposed areas. While lichenoid keratoses can appear anywhere on the skin, the most common location is the trunk. These lesions also frequently appear on extremities.

Clinically, lichenoid keratosis may simulate an actinic keratosis, basal cell carcinoma (eg, nodular or superficial), squamous cell carcinoma in situ, seborrheic keratosis, or a pigmented or amelanotic melanoma, whereas histologically it is almost identical to lichen planus.

The pathogenesis of lichenoid keratosis is not entirely understood, but it is thought to represent an inflammatory reaction occurring in a preexisting solar lentigo, seborrheic keratosis, or actinic keratosis.

Lichenoid keratoses are usually asymptomatic but may be slightly pruritic. Patients occasionally report that the lesion has changed, prompting examination of the lesion and biopsy. On average, the lesion has been present for 6 months at the time of diagnosis.

Most lichenoid keratoses are erythematous / pink, although some are violaceous or hyperpigmented. They are typically solitary and range in size from 3-19 mm in diameter. They may be scaly, pearly, or indurated.

Lichenoid keratoses often involute spontaneously over a period of months.

Codes​

ICD10CM:
L43.9 – Lichen planus, unspecified ”

Hope you find this helpful!
 

SWsibemom

Networker
Messages
31
Location
Albuquerque, NM
Best answers
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L43.9 - Lichen planus, unspecified

From: https://www.visualdx.com/visualdx/diagnosis/lichenoid+keratosis?moduleId=101&diagnosisId=51807

“Lichenoid keratosis, also known as benign lichenoid keratosis (BLK), solitary lichenoid keratosis (SLK), lichen planus-like keratosis (LPLK), solitary lichen planus, or involuting lichenoid plaque, is an asymptomatic or mildly pruritic pink papule or plaque commonly found on sun-exposed areas. While lichenoid keratoses can appear anywhere on the skin, the most common location is the trunk. These lesions also frequently appear on extremities.

Clinically, lichenoid keratosis may simulate an actinic keratosis, basal cell carcinoma (eg, nodular or superficial), squamous cell carcinoma in situ, seborrheic keratosis, or a pigmented or amelanotic melanoma, whereas histologically it is almost identical to lichen planus.

The pathogenesis of lichenoid keratosis is not entirely understood, but it is thought to represent an inflammatory reaction occurring in a preexisting solar lentigo, seborrheic keratosis, or actinic keratosis.

Lichenoid keratoses are usually asymptomatic but may be slightly pruritic. Patients occasionally report that the lesion has changed, prompting examination of the lesion and biopsy. On average, the lesion has been present for 6 months at the time of diagnosis.

Most lichenoid keratoses are erythematous / pink, although some are violaceous or hyperpigmented. They are typically solitary and range in size from 3-19 mm in diameter. They may be scaly, pearly, or indurated.

Lichenoid keratoses often involute spontaneously over a period of months.

Codes​

ICD10CM:
L43.9 – Lichen planus, unspecified ”

Hope you find this helpful!
Thank you.
 
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