ICD-10-CM Table of Neoplasms · FY 2026 Letter E

Table of Neoplasms: Anatomical Sites Starting With E ICD-10-CM

The letter E section of the FY 2026 Table of Neoplasms covers 77 anatomical site entries under 30 top-level anatomical sites. Each row carries up to six ICD-10-CM codes, one per behavior column, and sub-entries are indented under their parent exactly as the printed CMS table nests them.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026

Anatomical site Entries

Top-Level Anatomical sites

Code Columns

Letter

Column 1

Malignant Primary

Cancer at site of origin

Column 2

Malignant Secondary

Metastatic spread

Column 3

Ca In Situ

Non-invasive, early stage

Column 4

Benign

Non-cancerous

Column 5

Uncertain Behavior

Behavior undeterminable

Column 6

Unspecified Behavior

Behavior not documented

A B C DEF G H I J K L M N O P R S T U V W X Z

ICD-10-CM

Table of Neoplasms: E 77 entries

77 of 77 shown

Anatomical Site	Malignant Primary	Malignant Secondary	Ca In Situ	Benign	Uncertain Behavior	Unspecified Behavior
ear (external)See Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
auricle or aurisSee Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
canal, externalSee Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
cartilage	C49.0	C79.89	–	D21.0	D48.1	D49.2
external meatusSee Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
inner	C30.1	C78.39	D02.3	D14.0	D38.5	D49.1
lobuleSee Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
middle	C30.1	C78.39	D02.3	D14.0	D38.5	D49.1
overlapping lesion with accessory sinuses	C31.8	–	–	–	–	–
skin	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
basal cell carcinoma	C44.21	–	–	–	–	–
specified type NEC	C44.29	–	–	–	–	–
squamous cell carcinoma	C44.22	–	–	–	–	–
earlobe	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
basal cell carcinoma	C44.21	–	–	–	–	–
specified type NEC	C44.29	–	–	–	–	–
squamous cell carcinoma	C44.22	–	–	–	–	–
ejaculatory duct	C63.7	C79.82	D07.69	D29.8	D40.8	D49.59
elbow NEC	C76.4	C79.89	D04.6	D36.7	D48.7	D49.89
endocardium	C38.0	C79.89	–	D15.1	D48.7	D49.89
endocervix (canal) (gland)	C53.0	C79.82	D06.0	D26.0	D39.0	D49.59
endocrine gland NEC	C75.9	C79.89	D09.3	D35.9	D44.9	D49.7
pluriglandular	C75.8	C79.89	D09.3	D35.7	D44.9	D49.7
endometrium (gland) (stroma)	C54.1	C79.82	D07.0	D26.1	D39.0	D49.59
ensiform cartilage	C41.3	C79.51	–	D16.7	D48.0	D49.2
enteric	–	–	–	–	–	–
ependyma (brain)	C71.5	C79.31	–	D33.0	D43.0	D49.6
fourth ventricle	C71.7	C79.31	–	D33.1	D43.1	D49.6
epicardium	C38.0	C79.89	–	D15.1	D48.7	D49.89
epididymis	C63.0	C79.82	D07.69	D29.3	D40.8	D49.59
epidural	C72.9	C79.49	–	D33.9	D43.9	D49.7
epiglottis	C32.1	C78.39	D02.0	D14.1	D38.0	D49.1
anterior aspect or surface	C10.1	C79.89	D00.08	D10.5	D37.05	D49.0
cartilage	C32.3	C78.39	D02.0	D14.1	D38.0	D49.1
free border (margin)	C10.1	C79.89	D00.08	D10.5	D37.05	D49.0
junctional region	C10.8	C79.89	D00.08	D10.5	D37.05	D49.0
posterior (laryngeal) surface	C32.1	C78.39	D02.0	D14.1	D38.0	D49.1
suprahyoid portion	C32.1	C78.39	D02.0	D14.1	D38.0	D49.1
esophagogastric junction	C16.0	C78.89	D00.2	D13.1	D37.1	D49.0
esophagus	C15.9	C78.89	D00.1	D13.0	D37.8	D49.0
abdominal	C15.5	C78.89	D00.1	D13.0	D37.8	D49.0
cervical	C15.3	C78.89	D00.1	D13.0	D37.8	D49.0
distal (third)	C15.5	C78.89	D00.1	D13.0	D37.8	D49.0
lower (third)	C15.5	C78.89	D00.1	D13.0	D37.8	D49.0
middle (third)	C15.4	C78.89	D00.1	D13.0	D37.8	D49.0
overlapping lesion	C15.8	–	–	–	–	–
proximal (third)	C15.3	C78.89	D00.1	D13.0	D37.8	D49.0
thoracic	C15.4	C78.89	D00.1	D13.0	D37.8	D49.0
upper (third)	C15.3	C78.89	D00.1	D13.0	D37.8	D49.0
ethmoid (sinus)	C31.1	C78.39	D02.3	D14.0	D38.5	D49.1
bone or labyrinth	C41.0	C79.51	–	D16.4	D48.0	D49.2
eustachian tube	C30.1	C78.39	D02.3	D14.0	D38.5	D49.1
exocervix	C53.1	C79.82	D06.1	D26.0	D39.0	D49.59
external	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
meatus (ear)See Also: Neoplasm, skin, ear	C44.20	C79.2	D04.2	D23.2	D48.5	D49.2
os, cervix uteri	C53.1	C79.82	D06.1	D26.0	D39.0	D49.59
extradural	C72.9	C79.49	–	D33.9	D43.9	D49.7
extrahepatic (bile) duct	C24.0	C78.89	D01.5	D13.5	D37.6	D49.0
overlapping lesion with gallbladder	C24.8	–	–	–	–	–
extraocular muscle	C69.6	C79.49	D09.2	D31.6	D48.7	D49.89
extrarectal	C76.3	C79.89	D09.8	D36.7	D48.7	D49.89
extremity	C76.8	C79.89	D04.8	D36.7	D48.7	D49.89
lower	C76.5	C79.89	D04.7	D36.7	D48.7	D49.89
upper	C76.4	C79.89	D04.6	D36.7	D48.7	D49.89
eye NEC	C69.9	C79.49	D09.2	D31.9	D48.7	D49.89
overlapping sites	C69.8	–	–	–	–	–
eyeball	C69.9	C79.49	D09.2	D31.9	D48.7	D49.89
eyebrow	C44.309	C79.2	D04.39	D23.39	D48.5	D49.2
basal cell carcinoma	C44.319	–	–	–	–	–
specified type NEC	C44.399	–	–	–	–	–
squamous cell carcinoma	C44.329	–	–	–	–	–
eyelid (lower) (skin) (upper)	C44.10	–	–	–	–	–
basal cell carcinoma	C44.11	–	–	–	–	–
cartilage	C49.0	C79.89	–	D21.0	D48.1	D49.2
sebaceous cell	C44.13	–	–	–	–	–
specified type NEC	C44.19	–	–	–	–	–
squamous cell carcinoma	C44.12	–	–	–	–	–

Indented rows are sub-entries of the entry above them. The filter matches the full path, so typing a parent term finds its sub-entries too.

Questions About This Page

How do I pick the right column?

The pathology or clinical documentation names the behavior. When the description of the neoplasm names the behavior, that description overrides the Index guidance, and the matching column supplies the code.

Why are some cells empty?

Not every site has a code for every behavior. An empty cell means the classification does not provide a code in that column for that site, and the parent row or the main Index should be consulted.

Related References

Table of Neoplasms Hub Table of Neoplasms Lookup Primary Malignant Codes Benign Neoplasm Codes Uncertain Behavior Codes Table of Drugs and Chemicals ICD-10-CM Codes List ICD-10-CM Code Lookup

Source: official CMS FY 2026 ICD-10-CM release, effective October 1, 2025 through September 30, 2026.