1. ICD-10-CM Codes
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2. L00-L99 Diseases of the skin and subcutaneous tissue
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3. L60-L75 Disorders of skin appendages
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4. L72- Follicular cysts of skin and subcutaneous tissue
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2020 ICD-10-CM Diagnosis Code L72.12

Trichodermal cyst

2016 2017 2018 2019 2020 Billable/Specific Code

• L72.12 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2020 edition of ICD-10-CM L72.12 became effective on October 1, 2019.
• This is the American ICD-10-CM version of L72.12 - other international versions of ICD-10 L72.12 may differ.

• A neoplasm with tricholemmal differentiation. It affects women more frequently than men. It usually presents on the scalp as a solitary, multilobular, large, exophytic mass. Morphologically, it may display benign cytological features and appear as a circumscribed solid-cystic neoplasm or it may display malignant characteristics and invasive features. Cases without malignant characteristics usually have an indolent course. Complete surgical excision is recommended in such cases to avoid recurrences and to allow complete examination of the specimen. Cases with malignant characteristics may have a locally aggressive clinical course, recur, or metastasize.

• 606 Minor skin disorders with mcc
• 607 Minor skin disorders without mcc

Convert L72.12 to ICD-9-CM

• 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
• 2017 (effective 10/1/2016): No change
• 2018 (effective 10/1/2017): No change
• 2019 (effective 10/1/2018): No change
• 2020 (effective 10/1/2019): No change

• Type 2 Excludes: L72.3
  ICD-10-CM Diagnosis Code L72.3

  Sebaceous cyst

  2016 2017 2018 2019 2020 Billable/Specific Code

  Type 2 Excludes

  • pilar cyst (L72.11)
  • trichilemmal (proliferating) cyst (L72.12)

• Cyst (colloid) (mucous) (simple) (retention)
  • trichilemmal L72.12 (proliferating)
  • trichodermal L72.12

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.