Chapter 2
Range: C00-D49
FY2027 Dataset
ICD-10-CM Chapter 2: Neoplasms (C00-D49)
Malignant, in situ, benign, and uncertain behavior neoplasms.
Key Diagnosis Codes in Chapter 2
Verified against active FY2027 CDC NCHS code tables.
Showing active FY2027 codes
| Code | Official Descriptor | Status | Action |
|---|---|---|---|
| C00.0 |
Malignant neoplasm of external upper lip
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|
Billable Code | View Code |
| C00.1 |
Malignant neoplasm of external lower lip
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|
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| C00.2 |
Malignant neoplasm of external lip, unspecified
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|
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| C00.3 |
Malignant neoplasm of upper lip, inner aspect
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|
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| C00.4 |
Malignant neoplasm of lower lip, inner aspect
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|
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| C00.5 |
Malignant neoplasm of lip, unspecified, inner aspect
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|
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| C00.6 |
Malignant neoplasm of commissure of lip, unspecified
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|
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| C00.8 |
Malignant neoplasm of overlapping sites of lip
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|
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| C00.9 |
Malignant neoplasm of lip, unspecified
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|
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| C01 |
Malignant neoplasm of base of tongue
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|
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| C02.0 |
Malignant neoplasm of dorsal surface of tongue
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|
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| C02.1 |
Malignant neoplasm of border of tongue
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| C02.2 |
Malignant neoplasm of ventral surface of tongue
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|
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| C02.3 |
Malig neoplasm of anterior two-thirds of tongue, part unsp
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| C02.4 |
Malignant neoplasm of lingual tonsil
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|
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| C02.8 |
Malignant neoplasm of overlapping sites of tongue
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|
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| C02.9 |
Malignant neoplasm of tongue, unspecified
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|
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| C03.0 |
Malignant neoplasm of upper gum
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|
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| C03.1 |
Malignant neoplasm of lower gum
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|
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| C03.9 |
Malignant neoplasm of gum, unspecified
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|
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| C04.0 |
Malignant neoplasm of anterior floor of mouth
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|
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| C04.1 |
Malignant neoplasm of lateral floor of mouth
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|
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| C04.8 |
Malignant neoplasm of overlapping sites of floor of mouth
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|
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| C04.9 |
Malignant neoplasm of floor of mouth, unspecified
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|
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| C05.0 |
Malignant neoplasm of hard palate
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|
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| C05.1 |
Malignant neoplasm of soft palate
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|
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| C05.2 |
Malignant neoplasm of uvula
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|
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| C05.8 |
Malignant neoplasm of overlapping sites of palate
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|
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| C05.9 |
Malignant neoplasm of palate, unspecified
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|
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| C06.0 |
Malignant neoplasm of cheek mucosa
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|
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| C06.1 |
Malignant neoplasm of vestibule of mouth
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|
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| C06.2 |
Malignant neoplasm of retromolar area
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|
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| C06.80 |
Malignant neoplasm of ovrlp sites of unsp parts of mouth
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|
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| C06.89 |
Malignant neoplasm of overlapping sites of oth prt mouth
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|
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| C06.9 |
Malignant neoplasm of mouth, unspecified
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|
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| C07 |
Malignant neoplasm of parotid gland
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|
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| C08.0 |
Malignant neoplasm of submandibular gland
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|
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| C08.1 |
Malignant neoplasm of sublingual gland
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|
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| C08.9 |
Malignant neoplasm of major salivary gland, unspecified
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|
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| C09.0 |
Malignant neoplasm of tonsillar fossa
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|
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| C09.1 |
Malig neoplasm of tonsillar pillar (anterior) (posterior)
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|
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| C09.8 |
Malignant neoplasm of overlapping sites of tonsil
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|
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| C09.9 |
Malignant neoplasm of tonsil, unspecified
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|
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| C10.0 |
Malignant neoplasm of vallecula
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|
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| C10.1 |
Malignant neoplasm of anterior surface of epiglottis
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|
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| C10.2 |
Malignant neoplasm of lateral wall of oropharynx
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|
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| C10.3 |
Malignant neoplasm of posterior wall of oropharynx
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|
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| C10.4 |
Malignant neoplasm of branchial cleft
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|
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| C10.8 |
Malignant neoplasm of overlapping sites of oropharynx
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|
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| C10.9 |
Malignant neoplasm of oropharynx, unspecified
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|
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| C11.0 |
Malignant neoplasm of superior wall of nasopharynx
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|
Billable Code | View Code |
| C11.1 |
Malignant neoplasm of posterior wall of nasopharynx
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|
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| C11.2 |
Malignant neoplasm of lateral wall of nasopharynx
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|
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| C11.3 |
Malignant neoplasm of anterior wall of nasopharynx
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|
Billable Code | View Code |
| C11.8 |
Malignant neoplasm of overlapping sites of nasopharynx
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|
Billable Code | View Code |
| C11.9 |
Malignant neoplasm of nasopharynx, unspecified
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|
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| C12 |
Malignant neoplasm of pyriform sinus
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|
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| C13.0 |
Malignant neoplasm of postcricoid region
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|
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| C13.1 |
Malig neoplasm of aryepiglottic fold, hypopharyngeal aspect
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|
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| C13.2 |
Malignant neoplasm of posterior wall of hypopharynx
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|
Billable Code | View Code |
| C13.8 |
Malignant neoplasm of overlapping sites of hypopharynx
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|
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| C13.9 |
Malignant neoplasm of hypopharynx, unspecified
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|
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| C14.0 |
Malignant neoplasm of pharynx, unspecified
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|
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| C14.2 |
Malignant neoplasm of Waldeyer's ring
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|
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| C14.8 |
Malig neoplm of ovrlp sites of lip, oral cavity and pharynx
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|
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| C15.3 |
Malignant neoplasm of upper third of esophagus
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|
Billable Code | View Code |
| C15.4 |
Malignant neoplasm of middle third of esophagus
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|
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| C15.5 |
Malignant neoplasm of lower third of esophagus
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|
Billable Code | View Code |
| C15.8 |
Malignant neoplasm of overlapping sites of esophagus
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|
Billable Code | View Code |
| C15.9 |
Malignant neoplasm of esophagus, unspecified
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|
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| C16.0 |
Malignant neoplasm of cardia
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|
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| C16.1 |
Malignant neoplasm of fundus of stomach
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|
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| C16.2 |
Malignant neoplasm of body of stomach
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|
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| C16.3 |
Malignant neoplasm of pyloric antrum
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|
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| C16.4 |
Malignant neoplasm of pylorus
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|
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| C16.5 |
Malignant neoplasm of lesser curvature of stomach, unsp
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|
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| C16.6 |
Malignant neoplasm of greater curvature of stomach, unsp
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|
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| C16.8 |
Malignant neoplasm of overlapping sites of stomach
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|
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| C16.9 |
Malignant neoplasm of stomach, unspecified
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|
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| C17.0 |
Malignant neoplasm of duodenum
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|
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| C17.1 |
Malignant neoplasm of jejunum
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|
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| C17.2 |
Malignant neoplasm of ileum
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|
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| C17.3 |
Meckel's diverticulum, malignant
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|
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| C17.8 |
Malignant neoplasm of overlapping sites of small intestine
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|
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| C17.9 |
Malignant neoplasm of small intestine, unspecified
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|
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| C18.0 |
Malignant neoplasm of cecum
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|
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| C18.1 |
Malignant neoplasm of appendix
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| C18.2 |
Malignant neoplasm of ascending colon
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| C18.3 |
Malignant neoplasm of hepatic flexure
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|
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| C18.4 |
Malignant neoplasm of transverse colon
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| C18.5 |
Malignant neoplasm of splenic flexure
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| C18.6 |
Malignant neoplasm of descending colon
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|
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| C18.7 |
Malignant neoplasm of sigmoid colon
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|
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| C18.8 |
Malignant neoplasm of overlapping sites of colon
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|
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| C18.9 |
Malignant neoplasm of colon, unspecified
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| C19 |
Malignant neoplasm of rectosigmoid junction
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|
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| C20 |
Malignant neoplasm of rectum
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|
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| C21.0 |
Malignant neoplasm of anus, unspecified
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|
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| C21.1 |
Malignant neoplasm of anal canal
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|
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| C21.2 |
Malignant neoplasm of cloacogenic zone
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|
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Chapter Guidelines
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