2027 ICD-10-CM Diagnosis Code L73Other follicular disorders

ICD-10-CM Codes›L00–L99›L60-L75›L73

ICD-10-CM L73
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L73 is a non-billable ICD-10-CM category code for other follicular disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L73.0, L73.1, L73.2, and L73.8.

Code Identity

ICD-10-CM Code
L73
Billable Status
No — Non-Billable Category
Code Describes
Other follicular disorders
Short Description
Other follicular disorders
Same as the full description in the CMS dataset.
Chapter
L60-L75
Disorders of skin appendages

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL60-L75Disorders of skin appendages
CategoryL73Other follicular disorders
This CodeL73Other follicular disorders

Specific Coding for Other follicular disordersOverview

Non-specific codes like L73 require more characters. Use one of these billable codes instead:

  • Use L73.0 for Acne keloid

  • Use L73.1 for Pseudofolliculitis barbae

  • Use L73.2 for Hidradenitis suppurativa

  • Use L73.8 for Other specified follicular disorders

  • Use L73.9 for Follicular disorder, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L73: its own notes plus those printed at block L60-L75 and Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block L60-L75 Disorders of skin appendages applies to 85 codes
  • congenital malformations of integument (Q84.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L73Overview

What is the ICD-10 code for other follicular disorders?

L73 is the ICD-10-CM category for other follicular disorders, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is L73 (Other follicular disorders) a billable code?

No. This is a category header that groups the codes for other follicular disorders, and headers cannot be submitted on claims. Claims for other follicular disorders need a more specific code from this category, such as L73.0, L73.1, and L73.2.

Can L73 be reported with a code from Q84?

Not as a rule. The Excludes1 note at block L60-L75, which applies to L73, lists "congenital malformations of integument (Q84.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).