ICD-10 Code for Tumor

The ICD-10-CM 2027 alphabetic index lists tumor with the subterms below. More specific codes depend on the details documented, as listed in the official index (119 codes, 104 billable).

Index entries for Tumor

acinar cell – see Neoplasm, uncertain behavior, by site
acinic cell – see Neoplasm, uncertain behavior, by site
adenocarcinoid – see Neoplasm, malignant, by site
adenomatoid – see also Neoplasm, benign, by site
- odontogenic – see Cyst, calcifying odontogenic
adnexal (skin) – see Neoplasm, skin, benign, by site
adrenal
- cortical (benign) – D35.0- (header)
  - malignant – C74.0- (header)
- rest – see Neoplasm, benign, by site
alpha-cell
- malignant
  - pancreas – C25.4
  - specified site NEC – see Neoplasm, malignant, by site
  - unspecified site – C25.4
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
aneurysmal – see Aneurysm
aortic body – D44.7
- malignant – C75.5
Askin's – see Neoplasm, connective tissue, malignant
basal cell – D48.5 – see also Neoplasm, skin, uncertain behavior
Bednar – see Neoplasm, skin, malignant
benign (unclassified) – see Neoplasm, benign, by site
beta-cell
- malignant
  - pancreas – C25.4
  - specified site NEC – see Neoplasm, malignant, by site
  - unspecified site – C25.4
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
Brenner – D27.9
- borderline malignancy – D39.1- (header)
- malignant – C56- (header)
- proliferating – D39.1- (header)
bronchial alveolar, intravascular – D38.1
Brooke's – see Neoplasm, skin, benign
brown fat – see Lipoma
Burkitt – see Lymphoma, Burkitt
calcifying epithelial odontogenic – see Cyst, calcifying odontogenic
carcinoid – D3A.00
- benign – D3A.00
  - appendix – D3A.020
  - ascending colon – D3A.022
  - bronchus (lung) – D3A.090
  - cecum – D3A.021
  - colon – D3A.029
  - descending colon – D3A.024
  - duodenum – D3A.010
  - foregut NOS – D3A.094
  - hindgut NOS – D3A.096
  - ileum – D3A.012
  - jejunum – D3A.011
  - kidney – D3A.093
  - large intestine – D3A.029
  - lung (bronchus) – D3A.090
  - midgut NOS – D3A.095
  - rectum – D3A.026
  - sigmoid colon – D3A.025
  - small intestine – D3A.019
  - specified NEC – D3A.098
  - stomach – D3A.092
  - thymus – D3A.091
  - transverse colon – D3A.023
- malignant – C7A.00
  - appendix – C7A.020
  - ascending colon – C7A.022
  - bronchus (lung) – C7A.090
  - cecum – C7A.021
  - colon – C7A.029
  - descending colon – C7A.024
  - duodenum – C7A.010
  - foregut NOS – C7A.094
  - hindgut NOS – C7A.096
  - ileum – C7A.012
  - jejunum – C7A.011
  - kidney – C7A.093
  - large intestine – C7A.029
  - lung (bronchus) – C7A.090
  - midgut NOS – C7A.095
  - rectum – C7A.026
  - sigmoid colon – C7A.025
  - small intestine – C7A.019
  - specified NEC – C7A.098
  - stomach – C7A.092
  - thymus – C7A.091
  - transverse colon – C7A.023
- mesentery metastasis – C7B.04
- secondary – C7B.00
  - bone – C7B.03
  - distant lymph nodes – C7B.01
  - liver – C7B.02
  - peritoneum – C7B.04
  - specified NEC – C7B.09
carotid body – D44.6
- malignant – C75.4
cells – see also Neoplasm, unspecified behavior, by site
- benign – see Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
- uncertain whether benign or malignant – see Neoplasm, uncertain behavior, by site
cervix, in pregnancy or childbirth – see Pregnancy, complicated by, tumor, cervix
chondromatous giant cell – see Neoplasm, bone, benign
chromaffin – see also Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
Cock's peculiar – L72.3
Codman's – see Neoplasm, bone, benign
dentigerous, mixed – see Cyst, calcifying odontogenic
dermoid – see Neoplasm, benign, by site
- with malignant transformation – C56- (header)
desmoid (extra-abdominal) – see also Neoplasm, connective tissue, uncertain behavior
- abdominal – see Neoplasm, connective tissue, uncertain behavior
embolus – see Neoplasm, secondary, by site
embryonal (mixed) – see also Neoplasm, uncertain behavior, by site
- liver – C22.7
endodermal sinus
- specified site – see Neoplasm, malignant, by site
- unspecified site
  - female – C56.- (header)
  - male – C62.90
epithelial
- benign – see Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
Ewing's – see Neoplasm, bone, malignant, by site
fatty – see Lipoma
fibroid – see Leiomyoma
G cell
- malignant
  - pancreas – C25.4
  - specified site NEC – see Neoplasm, malignant, by site
  - unspecified site – C25.4
- specified site – see Neoplasm, uncertain behavior, by site
- unspecified site – D37.8
germ cell – see also Neoplasm, malignant, by site
- mixed – see Neoplasm, malignant, by site
ghost cell, odontogenic – see Cyst, calcifying odontogenic
giant cell – see also Neoplasm, uncertain behavior, by site
- bone – D48.0
  - malignant – see Neoplasm, bone, malignant
- chondromatous – see Neoplasm, bone, benign
- malignant – see Neoplasm, malignant, by site
- soft parts – see Neoplasm, connective tissue, uncertain behavior
  - malignant – see Neoplasm, connective tissue, malignant
glomus – D18.00
- intra-abdominal – D18.03
- intracranial – D18.02
- jugulare – D44.7
  - malignant – C75.5
- skin – D18.01
- specified site NEC – D18.09
gonadal stromal – see Neoplasm, uncertain behavior, by site
granular cell – see also Neoplasm, connective tissue, benign
- malignant – see Neoplasm, connective tissue, malignant
granulosa cell – D39.1- (header)
- juvenile – D39.1- (header)
- malignant – C56- (header)
granulosa cell-theca cell – D39.1- (header)
- malignant – C56- (header)
Grawitz's – C64- (header)
hemorrhoidal – see Hemorrhoids
hilar cell – D27- (header)
hilus cell – D27- (header)
Hurthle cell (benign) – D34
- malignant – C73
hydatid – see Echinococcus
hypernephroid – see also Neoplasm, uncertain behavior, by site
interstitial cell – see also Neoplasm, uncertain behavior, by site
- benign – see Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
intravascular bronchial alveolar – D38.1
islet cell – see Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
  - pancreas – C25.4
  - specified site NEC – see Neoplasm, malignant, by site
  - unspecified site – C25.4
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
juxtaglomerular – D41.0- (header)
Klatskin's – C24.0
Krukenberg's – C79.6- (header)
Leydig cell – see Neoplasm, uncertain behavior, by site
- benign – see Neoplasm, benign, by site
  - specified site – see Neoplasm, benign, by site
  - unspecified site
    - female – D27.9
    - male – D29.20
- malignant – see Neoplasm, malignant, by site
  - specified site – see Neoplasm, malignant, by site
  - unspecified site
    - female – C56.9
    - male – C62.90
- specified site – see Neoplasm, uncertain behavior, by site
- unspecified site
  - female – D39.10
  - male – D40.10
lipid cell, ovary – D27- (header)
lipoid cell, ovary – D27- (header)
malignant – C80.1 – see also Neoplasm, malignant, by site
- fusiform cell (type) – C80.1
- giant cell (type) – C80.1
- localized, plasma cell – see Plasmacytoma, solitary
- mixed NEC – C80.1
- small cell (type) – C80.1
- spindle cell (type) – C80.1
- unclassified – C80.1
mast cell – D47.09
melanotic, neuroectodermal – see Neoplasm, benign, by site
Merkel cell – see Carcinoma, Merkel cell
mesenchymal
- malignant – see Neoplasm, connective tissue, malignant
- mixed – see Neoplasm, connective tissue, uncertain behavior
mesodermal, mixed – see also Neoplasm, malignant, by site
- liver – C22.4
mesonephric – see also Neoplasm, uncertain behavior, by site
- malignant – see Neoplasm, malignant, by site
metastatic
- from specified site – see Neoplasm, malignant, by site
- of specified site – see Neoplasm, malignant, by site
- to specified site – see Neoplasm, secondary, by site
mixed NEC – see also Neoplasm, benign, by site
- malignant – see Neoplasm, malignant, by site
mucinous of low malignant potential
- specified site – see Neoplasm, malignant, by site
- unspecified site – C56.9
mucocarcinoid
- specified site – see Neoplasm, malignant, by site
- unspecified site – C18.1
mucoepidermoid – see Neoplasm, uncertain behavior, by site
Müllerian, mixed
- specified site – see Neoplasm, malignant, by site
- unspecified site – C54.9
myoepithelial – see Neoplasm, benign, by site
neuroectodermal (peripheral) – see Neoplasm, malignant, by site
- primitive
  - specified site – see Neoplasm, malignant, by site
  - unspecified site – C71.9
neuroendocrine – C7A.- (header)
- malignant poorly differentiated – C7A.1
- secondary NEC – C7B.8
- specified NEC – C7A.8
neurogenic olfactory – C30.0
nonencapsulated sclerosing – C73
odontogenic (adenomatoid) (benign) (calcifying epithelial) (keratocystic) (squamous) – see Cyst, calcifying odontogenic
- malignant – C41.1
  - upper jaw (bone) – C41.0
ovarian stromal – D39.1- (header)
ovary, in pregnancy – see Pregnancy, complicated by
pacinian – see Neoplasm, skin, benign
Pancoast's – see Pancoast's syndrome
papillary – see also Papilloma
- cystic – D37.9
- mucinous of low malignant potential – C56- (header)
  - specified site – see Neoplasm, malignant, by site
  - unspecified site – C56.9
- serous of low malignant potential
  - specified site – see Neoplasm, malignant, by site
  - unspecified site – C56.9
pelvic, in pregnancy or childbirth – see Pregnancy, complicated by
phantom – F45.8
phyllodes – D48.6- (header)
- benign – D24- (header)
- malignant – see Neoplasm, breast, malignant
Pindborg – see Cyst, calcifying odontogenic
placental site trophoblastic – D39.2
plasma cell (malignant) (localized) – see Plasmacytoma, solitary
polyvesicular vitelline
- specified site – see Neoplasm, malignant, by site
- unspecified site
  - female – C56.9
  - male – C62.90
Pott's puffy – M86.8X8- (header)
Rathke's pouch – D44.3
retinal anlage – see Neoplasm, benign, by site
salivary gland or duct type, mixed – see Neoplasm, salivary gland or duct, benign
- malignant – see Neoplasm, salivary gland or duct, malignant
Sampson's – N80.10- (header)
Schmincke's – see Neoplasm, nasopharynx, malignant
sclerosing stromal – D27- (header)
sebaceous – see Cyst, sebaceous
secondary – see Neoplasm, secondary, by site
- carcinoid – C7B.00
  - bone – C7B.03
  - distant lymph nodes – C7B.01
  - liver – C7B.02
  - peritoneum – C7B.04
  - specified NEC – C7B.09
- neuroendocrine NEC – C7B.8
serous of low malignant potential
- specified site – see Neoplasm, malignant, by site
- unspecified site – C56.9
Sertoli cell – see Neoplasm, benign, by site
- with lipid storage
  - specified site – see Neoplasm, benign, by site
  - unspecified site
    - female – D27.9
    - male – D29.20
- specified site – see Neoplasm, benign, by site
- unspecified site
  - female – D27.9
  - male – D29.20
Sertoli-Leydig cell – see Neoplasm, benign, by site
- specified site – see Neoplasm, benign, by site
- unspecified site
  - female – D27.9
  - male – D29.20
sex cord (-stromal) – see Neoplasm, uncertain behavior, by site
- with annular tubules – D39.1- (header)
skin appendage – see Neoplasm, skin, benign
smooth muscle – see Neoplasm, connective tissue, uncertain behavior
soft tissue
- benign – see Neoplasm, connective tissue, benign
- malignant – see Neoplasm, connective tissue, malignant
sternomastoid (congenital) – Q68.0
stromal
- endometrial – D39.0
- gastric – D48.19
  - benign – D21.4
  - malignant – C49.A2
  - uncertain behavior – D48.19
- gastrointestinal – C49.A- (header)
  - benign – D21.4
  - esophagus – C49.A1
  - large intestine – C49.A4
  - malignant – C49.A0
    - colon – C49.A4
    - duodenum – C49.A3
    - esophagus – C49.A1
    - ileum – C49.A3
    - jejunum – C49.A3
    - large intestine – C49.A4
    - Meckel diverticulum – C49.A3
    - omentum – C49.A9
    - peritoneum – C49.A9
    - rectum – C49.A5
    - small intestine – C49.A3
    - specified site NEC – C49.A9
    - stomach – C49.A2
  - rectum – C49.A5
  - small intestine – C49.A3
  - specified site NEC – C49.A9
  - stomach – C49.A2
  - uncertain behavior – D48.19
- intestine
  - benign – D21.4
  - malignant
    - large – C49.A4
    - small – C49.A3
  - uncertain behavior – D48.19
- ovarian – D39.1- (header)
- stomach – C49.A2
  - benign – D21.4
  - malignant – C49.A2
  - uncertain behavior – D48.19
testicular – D40.10
sweat gland – see also Neoplasm, skin, uncertain behavior
- benign – see Neoplasm, skin, benign
- malignant – see Neoplasm, skin, malignant
syphilitic, brain – A52.17
testicular stromal – D40.1- (header)
theca cell – D27.- (header)
theca cell-granulosa cell – D39.1- (header)
Triton, malignant – see Neoplasm, nerve, malignant
trophoblastic, placental site – D39.2
turban – D23.4
uterus (body) – see Pregnancy, complicated by, tumor, uterus
vagina, in pregnancy or childbirth – see Pregnancy, complicated by
varicose – see Varix
von Recklinghausen's – see Neurofibromatosis
vulva or perineum, in pregnancy or childbirth – see Pregnancy, complicated by
- causing obstructed labor – O65.5
Warthin's – see Neoplasm, salivary gland or duct, benign
Wilms' – C64- (header)
yolk sac – see Neoplasm, malignant, by site
- specified site – see Neoplasm, malignant, by site
- unspecified site
  - female – C56.9
  - male – C62.90

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.