Question 1

Is L66 a billable ICD-10 code?

Accepted Answer

No, L66 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

Question 2

What does ICD-10 code L66 mean?

Accepted Answer

ICD-10-CM code L66 represents Cicatricial alopecia [scarring hair loss]. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

Question 3

When was ICD-10 code L66 introduced?

Accepted Answer

Code L66 has been part of ICD-10-CM since 2016, when the coding system was mandated for use in the United States. This code was included in the original US implementation.

Question 4

What is the parent category for ICD-10 code L66?

Accepted Answer

The parent category for L66 is section:L60-L75 (Disorders of skin appendages (L60-L75)). This hierarchical classification helps organize related diagnoses for more accurate coding.

L662026

Excludes11Not coded together

Excludes210Not included here

Is L66 a billable ICD-10 code?

What does ICD-10 code L66 mean?

When was ICD-10 code L66 introduced?

What is the parent category for ICD-10 code L66?