ICD-10-CM Alphabetic Index · FY 2026 123 Entries
Cellulitis in the ICD-10-CM Index ICD-10-CM
The main term Cellulitis (diffuse) (phlegmonous) (septic) (suppurative) carries 123 index entries pointing to 51 ICD-10-CM codes. The default entry is L03.90, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
123
Index Entries
51
Codes Referenced
L03.90
Default Code
C
Letter
123 of 123 shown
ICD-10-CM
Index Entries Under Cellulitis 123 entries · 51 codes
Cellulitis (diffuse) (phlegmonous) (septic) (suppurative) L03.90
abdominal wall L03.311
anaerobic A48.0
ankle see Cellulitis, lower limb
anus K61.0
arm see Cellulitis, upper limb
auricle (ear) see Cellulitis, ear
axilla L03.11- Non-billable
back (any part) L03.312
breast (acute) (nonpuerperal) (subacute) N61.0
nipple N61.0
broad ligament
acute N73.0
buttock L03.317
cervical (meaning neck) L03.221
cervix (uteri) see Cervicitis
cheek (external) L03.211
internal K12.2
chest wall L03.313
chronic L03.90
clostridial A48.0
corpus cavernosum N48.22
digit
finger see Cellulitis, finger
toe see Cellulitis, toe
Douglas' cul-de-sac or pouch
acute N73.0
drainage site (following operation) T81.49 Non-billable
ear (external) H60.1- Non-billable
eosinophilic (granulomatous) L98.3
erysipelatous see Erysipelas
external auditory canal see Cellulitis, ear
eyelid see Abscess, eyelid
face NEC L03.211
finger (intrathecal) (periosteal) (subcutaneous) (subcuticular) L03.01- Non-billable
flank L03.31A
foot see Cellulitis, lower limb
gangrenous see Gangrene
genital organ NEC
female (external) N76.4
male N49.9
multiple sites N49.8
specified NEC N49.8
gluteal (region) L03.317
gonococcal A54.89
groin L03.314
hand see Cellulitis, upper limb
head NEC L03.811
face (any part, except ear, eye and nose) L03.211
heel see Cellulitis, lower limb
hip see Cellulitis, lower limb
jaw (region) L03.211
knee see Cellulitis, lower limb
labium (majus) (minus) see Vulvitis
lacrimal passages see Inflammation, lacrimal, passages
larynx J38.7
leg see Cellulitis, lower limb
lip K13.0
lower limb L03.11- Non-billable
toe see Cellulitis, toe
mouth (floor) K12.2
multiple sites, so stated L03.90
nasopharynx J39.1
newborn P38.9
with mild hemorrhage P38.1
without hemorrhage P38.9
neck (region) L03.221
nipple (acute) (nonpuerperal) (subacute) N61.0
nose (septum) (external) J34.0
orbit, orbital H05.01- Non-billable
palate (soft) K12.2
pectoral (region) L03.313
pelvis, pelvic (chronic)
female N73.2 see also Disease, pelvis, inflammatory
acute N73.0
following ectopic or molar pregnancy O08.0
male K65.0
penis N48.22
perineal, perineum L03.315
periorbital L03.213
perirectal K61.1
peritonsillar J36
periurethral N34.0
periuterine N73.2 see also Disease, pelvis, inflammatory
acute N73.0
pharynx J39.1
preseptal L03.213
rectum K61.1
retroperitoneal K68.9
round ligament
acute N73.0
scalp (any part) L03.811
scrotum N49.2
seminal vesicle N49.0
shoulder see Cellulitis, upper limb
specified site NEC L03.818
submandibular (region) (space) (triangle) K12.2
gland K11.3
submaxillary (region) K12.2
gland K11.3
thigh see Cellulitis, lower limb
thumb (intrathecal) (periosteal) (subcutaneous) (subcuticular) see Cellulitis, finger
toe (intrathecal) (periosteal) (subcutaneous) (subcuticular) L03.03- Non-billable
tonsil J36
trunk L03.319
abdominal wall L03.311
back (any part) L03.312
buttock L03.317
chest wall L03.313
groin L03.314
perineal, perineum L03.315
umbilicus L03.316
tuberculous (primary) A18.4
umbilicus L03.316
upper limb L03.11- Non-billable
axilla see Cellulitis, axilla
finger see Cellulitis, finger
thumb see Cellulitis, finger
vaccinal T88.0 Non-billable
vocal cord J38.3
vulva see Vulvitis
wrist see Cellulitis, upper limb
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
