D Codes

The ICD-10-CM D codes include all the in situ, benign, uncertain and unspecified nature neoplasms.

Carcinoma in situ (D00-D09)

The first section in the D codes covers the in-situ cancers.

ICD-10-CM Code ICD-10-CM Description
D00.- Carcinoma in situ of oral cavity, esophagus and stomach
D01.- Carcinoma in situ of other and unspecified digestive organs
D02.- Carcinoma in situ of middle ear and respiratory system
D03.- Melanoma in situ
D04.- Carcinoma in situ of skin
D05.- Carcinoma in situ of breast
D06.- Carcinoma in situ of cervix
D07.- Carcinoma in situ of other and unspecified genital organs
D09.- Carcinoma in situ of other and unspecified site


Benign neoplasms (D10-D36)

The next section of the D codes covers the benign (/1) neoplasms.

ICD-10-CM Code ICD-10-CM Description
D10.- Benign neoplasm of mouth and pharynx
D11.- Benign neoplasm of major salivary glands
D12.- Benign neoplasm of colon, rectum, anus and anal canal
D13.- Benign neoplasm of other and ill-defined parts of digestive system
D14.- Benign neoplasm of middle ear and respiratory system
D15.- Benign neoplasm of other and unspecified intrathoracic organs
D16.- Benign neoplasm of bone and articular cartilage
D17.- Benign lipomatous neoplasm
D18.- Hemangioma and Lymphangioma, any site
D19.- Benign neoplasm of mesothelial tissue
D20.- Benign neoplasm of soft tissue of retroperitoneum and peritoneum
D21.- Other benign neoplasms of connective and other soft tissue
D22.- Melanocytic nevi (atypical nevus, blue hairy pigmented nevus, nevus, NOS)
D23.- Other benign neoplasms of skin
D24.- Benign neoplasm of breast
D25.- Leiomyoma of uterus
D26.- Other benign neoplasm of uterus
D27.- Benign neoplasm of ovary
D28.- Benign neoplasm of other and unspecified female genital organs
D29.- Benign neoplasm of male genital organs
D30.- Benign neoplasm of urinary organs
D31.- Benign neoplasm of eye and adnexa
D32.- Benign neoplasm of meninges
D33.- Benign neoplasm of brain and other parts of central nervous system
D34.- Benign neoplasm of thyroid gland
D35.- Benign neoplasm of other and unspecified endocrine glands
D36.- Benign neoplasm of other and unspecified sites

Benign Neuroendocrine Tumors (D3A)

ICD-10 CM has specific category for benign neuroendocrine tumors.

ICD-10-CM Code ICD-10-CM Description
D3A.00 Benign carcinoid tumors of unspecified site
D3A.01 Benign carcinoid tumors of the small intestine
D3A.02 Benign carcinoid tumors of the appendix, large intestine and rectum
D3A.09 Benign carcinoid tumors of other sites
D3A.8 Other benign neuroendocrine tumors (NOS)


Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37 – D48)

The last section of the D chapter includes neoplasms of uncertain behavior and several of the hematopoietic diseases.

ICD-10-CM Code ICD-10-CM Description
D37.- Neoplasm of uncertain behavior of oral cavity and digestive organs
D38.- Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs
D39.- Neoplasm of uncertain behavior of female genital organs
D40.- Neoplasm of uncertain behavior of male genital organs
D41.- Neoplasm of uncertain behavior of urinary organs
D44.- Neoplasm of uncertain behavior of endocrine glands
D45 Polycythemia Vera
D46.- Myelodysplastic syndromes
D47.- Other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
D48.- Neoplasm of uncertain behavior of other and unspecified sites


Neoplasms of unspecified behavior (D49)

D49 classifies by site, neoplasms of unspecified morphology and behavior. The term “mass” unless stated otherwise is not to be regarded as a neoplastic growth.

Updated: December 3, 2018