ICD-10-CM
ICD-10 code for Cellulitis: L03.90
The ICD-10-CM index points "Cellulitis" to L03.9 (Cellulitis and acute lymphangitis, unspecified), a header that is not billable. When nothing more specific is documented, the billable code is L03.90, Cellulitis, unspecified.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Index subterms
A header groups codes and is not billed. A billable code is one you can report.
- L03.311abdominal wall, Cellulitis of abdominal wallBillable
- A48.0anaerobic, Gas gangreneBillable
- K61.0anus, Anal abscessBillable
- L03.312back (any part except buttock and flank), Cellulitis of back [any part except buttock and flank]Billable
- N61.0breast (acute) (nonpuerperal) (subacute), Mastitis without abscessBillable
- L03.317buttock, Cellulitis of buttockBillable
- L03.221cervical (meaning neck), Cellulitis of neckBillable
- L03.211cheek (external), Cellulitis of faceBillable
- L03.313chest wall, Cellulitis of chest wallBillable
- L03.90chronic, Cellulitis, unspecifiedBillable
- A48.0clostridial, Gas gangreneBillable
- N48.22corpus cavernosum, Cellulitis of corpus cavernosum and penisBillable
- T81.49drainage site (following operation), Infection following a procedure, other surgical siteHeader
- L98.3eosinophilic (granulomatous), Eosinophilic cellulitis [Wells]Billable
- L03.211face NEC, Cellulitis of faceBillable
- L03.31Aflank, Cellulitis of flankBillable
- L03.317gluteal (region), Cellulitis of buttockBillable
- A54.89gonococcal, Other gonococcal infectionsBillable
- L03.314groin, Cellulitis of groinBillable
- L03.811head NEC, Cellulitis of head [any part, except face]Billable
- L03.211jaw (region), Cellulitis of faceBillable
- J38.7larynx, Other diseases of larynxBillable
- K13.0lip, Diseases of lipsBillable
- K12.2mouth (floor), Cellulitis and abscess of mouthBillable
- L03.90multiple sites, so stated, Cellulitis, unspecifiedBillable
- J39.1nasopharynx, Other abscess of pharynxBillable
- L03.316navel, Cellulitis of umbilicusBillable
- L03.221neck (region), Cellulitis of neckBillable
- N61.0nipple (acute) (nonpuerperal) (subacute), Mastitis without abscessBillable
- J34.0nose (septum) (external), Abscess, furuncle and carbuncle of noseBillable
- K12.2palate (soft), Cellulitis and abscess of mouthBillable
- L03.313pectoral (region), Cellulitis of chest wallBillable
- N48.22penis, Cellulitis of corpus cavernosum and penisBillable
- L03.315perineal, perineum, Cellulitis of perineumBillable
- L03.213periorbital, Periorbital cellulitisBillable
- K61.1perirectal, Rectal abscessBillable
- J36peritonsillar, Peritonsillar abscessBillable
- N34.0periurethral, Urethral abscessBillable
- N73.2periuterine, Unspecified parametritis and pelvic cellulitisBillable
- J39.1pharynx, Other abscess of pharynxBillable
More specific codes in L03
A header groups codes and is not billed. A billable code is one you can report.
- L03Cellulitis and acute lymphangitisHeader
- L03.0Cellulitis and acute lymphangitis of finger and toeHeader
- L03.01Cellulitis of fingerHeader
- L03.02Acute lymphangitis of fingerHeader
- L03.03Cellulitis of toeHeader
- L03.04Acute lymphangitis of toeHeader
- L03.1Cellulitis and acute lymphangitis of other parts of limbHeader
- L03.11Cellulitis of other parts of limbHeader
- L03.12Acute lymphangitis of other parts of limbHeader
- L03.2Cellulitis and acute lymphangitis of face and neckHeader
- L03.21Cellulitis and acute lymphangitis of faceHeader
- L03.22Cellulitis and acute lymphangitis of neckHeader
- L03.3Cellulitis and acute lymphangitis of trunkHeader
- L03.31Cellulitis of trunkHeader
- L03.32Acute lymphangitis of trunkHeader
- L03.8Cellulitis and acute lymphangitis of other sitesHeader
- L03.81Cellulitis of other sitesHeader
- L03.89Acute lymphangitis of other sitesHeader
- L03.9Cellulitis and acute lymphangitis, unspecifiedHeader
- L03.90Cellulitis, unspecifiedBillable
- L03.91Acute lymphangitis, unspecifiedBillable
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From L03. A note on a category applies to every code under it.
- K61.-Cellulitis of anal and rectal region
- H60.1Cellulitis of external auditory canal
- H00.0Cellulitis of eyelid
- N76.4Cellulitis of female external genital organs
- H04.3Cellulitis of lacrimal apparatus
- N48.2, N49.-Cellulitis of male external genital organs
- K12.2Cellulitis of mouth
- J34.0Cellulitis of nose
- L98.3Eosinophilic cellulitis [Wells]
- L98.2Febrile neutrophilic dermatosis [Sweet]
- I89.1Lymphangitis (chronic) (subacute)
Related conditions
Related pages
- L03.90 code detailsNotes, nearby codes, CMS-HCC group
- Category L03.9Every code under it
- Chapter 12Diseases of the skin and subcutaneous tissue
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Cellulitis?
The ICD-10-CM index points "Cellulitis" to L03.9 (Cellulitis and acute lymphangitis, unspecified), a header that is not billable. When nothing more specific is documented, the billable code is L03.90, Cellulitis, unspecified.
Is L03.90 billable?
Yes. L03.90 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to L03.90?
The CDC tabular list gives 11 Excludes2 notes (may be coded together when both are documented) for L03.90 and the categories above it. They are listed on this page.
What chapter is L03.90 in?
Chapter 12. Diseases of the skin and subcutaneous tissue.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.