ICD-10 Code for Adenoma

The ICD-10-CM 2027 alphabetic index lists adenoma with the subterms below. More specific codes depend on the details documented, as listed in the official index (19 codes, 16 billable).

Index entries for Adenoma

acidophil
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
acidophil-basophil, mixed
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
adrenal (cortical) – D35.00
- clear cell – D35.00
- compact cell – D35.00
- glomerulosa cell – D35.00
- heavily pigmented variant – D35.00
- mixed cell – D35.00
alpha-cell
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
alveolar – D14.30
apocrine
- breast – D24- (header)
- specified site NEC – see Neoplasm, skin, benign, by site
- unspecified site – D23.9
basal cell – D11.9
basophil
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
basophil-acidophil, mixed
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
beta-cell
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
bile duct – D13.4
- common – D13.5
- extrahepatic – D13.5
- intrahepatic – D13.4
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.4
black – D35.00
bronchial – D38.1
- cylindroid type – see Neoplasm, lung, malignant
ceruminous – D23.2- (header)
chief cell – D35.1
chromophobe
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
colloid
- specified site – see Neoplasm, benign, by site
- unspecified site – D34
eccrine, papillary – see Neoplasm, skin, benign
endocrine, multiple
- single specified site – see Neoplasm, uncertain behavior, by site
- two or more specified sites – D44- (header)
- unspecified site – D44.9
endometrioid – see also Neoplasm, benign
- borderline malignancy – see Neoplasm, uncertain behavior, by site
eosinophil
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
fetal
- specified site – see Neoplasm, benign, by site
- unspecified site – D34
follicular
- specified site – see Neoplasm, benign, by site
- unspecified site – D34
hepatocellular – D13.4
Hurthle cell – D34
islet cell
- pancreas – D13.7
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.7
liver cell – D13.4
macrofollicular
- specified site – see Neoplasm, benign, by site
- unspecified site – D34
malignant, malignum – see Neoplasm, malignant, by site
microcystic
- pancreas – D13.6
- specified site NEC – see Neoplasm, benign, by site
- unspecified site – D13.6
microfollicular
- specified site – see Neoplasm, benign, by site
- unspecified site – D34
mucoid cell
- specified site – see Neoplasm, benign, by site
- unspecified site – D35.2
multiple endocrine
- single specified site – see Neoplasm, uncertain behavior, by site
- two or more specified sites – D44- (header)
- unspecified site – D44.9
nipple – D24- (header)
papillary – see also Neoplasm, benign, by site
- eccrine – see Neoplasm, skin, benign, by site
Pick's tubular
- specified site – see Neoplasm, benign, by site
- unspecified site
  - female – D27.9
  - male – D29.20
pleomorphic
- carcinoma in – see Neoplasm, salivary gland, malignant
  - specified site – see Neoplasm, malignant, by site
  - unspecified site – C08.9
polypoid – see also Neoplasm, benign
- adenocarcinoma in – see Neoplasm, malignant, by site
- adenocarcinoma in situ – see Neoplasm, in situ, by site
prostate – see Neoplasm, prostate, benign
rete cell – D29.20
sebaceous – see Neoplasm, skin, benign
Sertoli cell
- specified site – see Neoplasm, benign, by site
- unspecified site
  - female – D27.9
  - male – D29.20
skin appendage – see Neoplasm, skin, benign
sudoriferous gland – see Neoplasm, skin, benign
sweat gland – see Neoplasm, skin, benign
testicular
- specified site – see Neoplasm, benign, by site
- unspecified site
  - female – D27.9
  - male – D29.20
tubular – see also Neoplasm, benign, by site
- adenocarcinoma in – see Neoplasm, malignant, by site
- adenocarcinoma in situ – see Neoplasm, in situ, by site
- Pick's
  - specified site – see Neoplasm, benign, by site
  - unspecified site
    - female – D27.9
    - male – D29.20
tubulovillous – see also Neoplasm, benign, by site
- adenocarcinoma in – see Neoplasm, malignant, by site
- adenocarcinoma in situ – see Neoplasm, in situ, by site
villous – see Neoplasm, uncertain behavior, by site
- adenocarcinoma in – see Neoplasm, malignant, by site
- adenocarcinoma in situ – see Neoplasm, in situ, by site
water-clear cell – D35.1

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.