L03.31 - Cellulitis of trunk

Version 2023
Short Description:Cellulitis of trunk
Long Description:Cellulitis of trunk
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Infections of the skin and subcutaneous tissue (L00-L08)
      • Cellulitis and acute lymphangitis (L03)

L03.31 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of cellulitis of trunk. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding for Cellulitis of trunk

Non-specific codes like L03.31 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for cellulitis of trunk:

  • BILLABLE CODE - Use L03.311 for Cellulitis of abdominal wall
  • BILLABLE CODE - Use L03.312 for Cellulitis of back [any part except buttock]
  • BILLABLE CODE - Use L03.313 for Cellulitis of chest wall
  • BILLABLE CODE - Use L03.314 for Cellulitis of groin
  • BILLABLE CODE - Use L03.315 for Cellulitis of perineum
  • BILLABLE CODE - Use L03.316 for Cellulitis of umbilicus
  • BILLABLE CODE - Use L03.317 for Cellulitis of buttock
  • BILLABLE CODE - Use L03.319 for Cellulitis of trunk, unspecified

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Patient Education


Cellulitis is an infection of the skin and deep underlying tissues. Group A strep (streptococcal) bacteria are the most common cause. The bacteria enter your body when you get an injury such as a bruise, burn, surgical cut, or wound.

Symptoms include:

Your health care provider may take a sample or culture from your skin or do a blood test to identify the bacteria causing infection. Treatment is with antibiotics. They may be oral in mild cases, or intravenous (by IV) for more severe cases.

[Learn More in MedlinePlus]

Code History