ICD-10-CM Alphabetic Index · FY 2027 380 Entries

Tumor in the ICD-10-CM Index ICD-10-CM

The main term Tumor carries 380 index entries pointing to 119 ICD-10-CM codes. 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 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027

380

Index Entries

119

Codes Referenced

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Default Code

Letter

380 of 380 shown

ICD-10-CM

Index Entries Under Tumor 380 entries · 119 codes

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 Non-billable

malignant C74.0 Non-billable

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 Non-billable

malignant C56 Non-billable

proliferating D39.1 Non-billable

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 Non-billable

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 Non-billable

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 Non-billable

juvenile D39.1 Non-billable

malignant C56 Non-billable

granulosa cell-theca cell D39.1 Non-billable

malignant C56 Non-billable

Grawitz's C64 Non-billable

hemorrhoidal see Hemorrhoids

hilar cell D27 Non-billable

hilus cell D27 Non-billable

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 Non-billable

Klatskin's C24.0

Krukenberg's C79.6 Non-billable

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 Non-billable

lipoid cell, ovary D27 Non-billable

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 Non-billable

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 Non-billable

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 Non-billable

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 Non-billable

benign D24 Non-billable

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 Non-billable

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 Non-billable

Schmincke's see Neoplasm, nasopharynx, malignant

sclerosing stromal D27 Non-billable

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 Non-billable

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 Non-billable

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 Non-billable

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 Non-billable

theca cell D27 Non-billable

theca cell-granulosa cell D39.1 Non-billable

Triton, malignant see Neoplasm, nerve, malignant

trophoblastic, placental site D39.2

turban D23.4

uterus (body), in pregnancy or childbirth 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 Non-billable

yolk sac see Neoplasm, malignant, by site

specified site see Neoplasm, malignant, by site

unspecified site

female C56.9

male C62.90

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Related Index Terms

Leiomyoma Lipoma Papilloma Plasmacytoma All index terms starting with T Index to Diseases and Injuries ICD-10-CM Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.