ICD-10-CM L05.91 is the diagnosis code for Pilonidal cyst without abscess. This code falls under the section "Infections of the skin and subcutaneous tissue" within Chapter 12 â Diseases of the skin and subcutaneous tissue (L00-L99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions are not included in L05.91. If the patient has both, code each condition separately:
Understanding where L05.91 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, L05.91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
L05.91 is the ICD-10-CM diagnosis code for "Pilonidal cyst without abscess". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of L05.91 is L05.9 ("Pilonidal cyst and sinus without abscess"). L05.91 provides a more specific classification within this category.
L05.91 is located in Section L00-L08 â "Infections of the skin and subcutaneous tissue" within Chapter 12 of the ICD-10-CM Tabular List.
Use L05.91 when the patients documented diagnosis matches "Pilonidal cyst without abscess" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Pilonidal cyst without abscess is L05.91.
Yes, L05.91 can be used as a primary diagnosis code since it is billable and specific.
L05.91 is in Chapter 12 of the ICD-10-CM Tabular List.
Yes, L05.91 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.