2020 ICD-10-CM Table of Neoplasms for Anatomical Sites starting with "c"

The Table of Neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

For coding neoplasms identify the solid organ or tissue and then assign the correct histological behavior which could be Benign, In situ, Malignant, Primary, Secondary, Uncertain Behavior or Unspecified. The Tabular Index must be reviewed for the complete diagnosis code.

The following ICD-10-CM table of neoplasms effective for the fiscal year 2020 includes a complete listing of all anatomical sites starting with the letter "c"

Neoplasm, neoplastic Malignant
Primary
Malignant
Secondary
CaInSitu Benign Uncertain
Behavior
Unspecified
Behavior
»calf
C76.5C79.89D04.7D36.7D48.7D49.89
»calvarium
C41.0C79.51D16.4D48.0D49.2
»calyx, renal
C65.C79.0D09.19D30.1D41.1D49.51
»canal
C21.1C78.5D01.3D12.9D37.8D49.0
»canal
  »anal
C21.1C78.5D01.3D12.9D37.8D49.0
»canal
  »auditory (external) [See Also: Neoplasm, skin, ear]
C44.20C79.2D04.2D23.2D48.5D49.2
»canal
  »auricular (external) [See Also: Neoplasm, skin, ear]
C44.20C79.2D04.2D23.2D48.5D49.2
»canaliculi, biliary (biliferi) (intrahepatic)
C22.1C78.7D01.5D13.4D37.6D49.0
»canthus (eye) (inner) (outer)
C44.10C79.2D04.1D23.1D48.5D49.2
»canthus (eye) (inner) (outer)
  »basal cell carcinoma
C44.11
»canthus (eye) (inner) (outer)
  »sebaceous cell
C44.13
»canthus (eye) (inner) (outer)
  »specified type NEC
C44.19
»canthus (eye) (inner) (outer)
  »squamous cell carcinoma
C44.12
»capillary
»caput coli
C18.0C78.5D01.0D12.0D37.4D49.0
»carcinoid
»cardia (gastric)
C16.0C78.89D00.2D13.1D37.1D49.0
»cardiac orifice (stomach)
C16.0C78.89D00.2D13.1D37.1D49.0
»cardio-esophageal junction
C16.0C78.89D00.2D13.1D37.1D49.0
»cardio-esophagus
C16.0C78.89D00.2D13.1D37.1D49.0
»carina (bronchus)
C34.0C78.0D02.2D14.3D38.1D49.1
»carotid (artery)
C49.0C79.89D21.0D48.1D49.2
»carotid (artery)
  »body
C75.4C79.89D35.5D44.6D49.7
»carpus (any bone)
C40.1C79.51D16.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
C41.9C79.51D16.9D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »arytenoid
C32.3C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »auricular
C49.0C79.89D21.0D48.1D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »bronchi
C34.0C78.39D14.3D38.1D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »costal
C41.3C79.51D16.7D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »cricoid
C32.3C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »cuneiform
C32.3C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »ear (external)
C49.0C79.89D21.0D48.1D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »ensiform
C41.3C79.51D16.7D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »epiglottis
C32.1C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »epiglottis
    »anterior surface
C10.1C79.89D00.08D10.5D37.05D49.0
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »eyelid
C49.0C79.89D21.0D48.1D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »intervertebral
C41.2C79.51D16.6D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »larynx, laryngeal
C32.3C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »nose, nasal
C30.0C78.39D02.3D14.0D38.5D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »pinna
C49.0C79.89D21.0D48.1D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »rib
C41.3C79.51D16.7D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »semilunar (knee)
C40.2C79.51D16.2D48.0D49.2
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »thyroid
C32.3C78.39D02.0D14.1D38.0D49.1
»cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
  »trachea
C33C78.39D02.1D14.2D38.1D49.1
»cauda equina
C72.1C79.49D33.4D43.4D49.7
»cavity
C06.9C79.89D00.00D10.30D37.09D49.0
»cavity
  »buccal
C06.9C79.89D00.00D10.30D37.09D49.0
»cavity
  »nasal
C30.0C78.39D02.3D14.0D38.5D49.1
»cavity
  »oral
C06.9C79.89D00.00D10.30D37.09D49.0
»cavity
  »peritoneal
C48.2C78.6D20.1D48.4D49.0
»cavity
  »tympanic
C30.1C78.39D02.3D14.0D38.5D49.1
»cecum
C18.0C78.5D01.0D12.0D37.4D49.0
»central nervous system
C72.9C79.40
»cerebellopontine (angle)
C71.6C79.31D33.1D43.1D49.6
»cerebellum, cerebellar
C71.6C79.31D33.1D43.1D49.6
»cerebrum, cerebra (cortex) (hemisphere) (white matter)
C71.0C79.31D33.0D43.0D49.6
»cerebrum, cerebra (cortex) (hemisphere) (white matter)
  »meninges
C70.0C79.32D32.0D42.0D49.7
»cerebrum, cerebra (cortex) (hemisphere) (white matter)
  »peduncle
C71.7C79.31D33.1D43.1D49.6
»cerebrum, cerebra (cortex) (hemisphere) (white matter)
  »ventricle
C71.5C79.31D33.0D43.0D49.6
»cerebrum, cerebra (cortex) (hemisphere) (white matter)
  »ventricle
    »fourth
C71.7C79.31D33.1D43.1D49.6
»cervical region
C76.0C79.89D09.8D36.7D48.7D49.89
»cervix (cervical) (uteri) (uterus)
C53.9C79.82D06.9D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »canal
C53.0C79.82D06.0D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »endocervix (canal) (gland)
C53.0C79.82D06.0D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »exocervix
C53.1C79.82D06.1D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »external os
C53.1C79.82D06.1D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »internal os
C53.0C79.82D06.0D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »nabothian gland
C53.0C79.82D06.0D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »overlapping lesion
C53.8
»cervix (cervical) (uteri) (uterus)
  »squamocolumnar junction
C53.8C79.82D06.7D26.0D39.0D49.59
»cervix (cervical) (uteri) (uterus)
  »stump
C53.8C79.82D06.7D26.0D39.0D49.59
»cheek
C76.0C79.89D09.8D36.7D48.7D49.89
»cheek
  »external
C44.309C79.2D04.39D23.39D48.5D49.2
»cheek
  »external
    »basal cell carcinoma
C44.319
»cheek
  »external
    »specified type NEC
C44.399
»cheek
  »external
    »squamous cell carcinoma
C44.329
»cheek
  »inner aspect
C06.0C79.89D00.02D10.39D37.09D49.0
»cheek
  »internal
C06.0C79.89D00.02D10.39D37.09D49.0
»cheek
  »mucosa
C06.0C79.89D00.02D10.39D37.09D49.0
»chest (wall) NEC
C76.1C79.89D09.8D36.7D48.7D49.89
»chiasma opticum
C72.3C79.49D33.3D43.3D49.7
»chin
C44.309C79.2D04.39D23.39D48.5D49.2
»chin
  »basal cell carcinoma
C44.319
»chin
  »specified type NEC
C44.399
»chin
  »squamous cell carcinoma
C44.329
»choana
C11.3C79.89D00.08D10.6D37.05D49.0
»cholangiole
C22.1C78.89D01.5D13.4D37.6D49.0
»choledochal duct
C24.0C78.89D01.5D13.5D37.6D49.0
»choroid
C69.3C79.49D09.2D31.3D48.7D49.81
»choroid
  »plexus
C71.5C79.31D33.0D43.0D49.6
»ciliary body
C69.4C79.49D09.2D31.4D48.7D49.89
»clavicle
C41.3C79.51D16.7D48.0D49.2
»clitoris
C51.2C79.82D07.1D28.0D39.8D49.59
»clivus
C41.0C79.51D16.4D48.0D49.2
»cloacogenic zone
C21.2C78.5D01.3D12.9D37.8D49.0
»coccygeal
C49.5C79.89D21.5D48.1D49.2
»coccygeal
  »body or glomus
C49.5C79.89D21.5D48.1D49.2
»coccygeal
  »vertebra
C41.4C79.51D16.8D48.0D49.2
»coccyx
C41.4C79.51D16.8D48.0D49.2
»colon [See Also: Neoplasm, intestine, large]
C18.9C78.5
»colon [See Also: Neoplasm, intestine, large]
  »with rectum
C19C78.5D01.1D12.7D37.5D49.0
»column, spinal
»columnella [See Also: Neoplasm, skin, face]
C44.390C79.2D04.39D23.39D48.5D49.2
»commissure
C00.6C79.89D00.01D10.39D37.01D49.0
»commissure
  »labial, lip
C00.6C79.89D00.01D10.39D37.01D49.0
»commissure
  »laryngeal
C32.0C78.39D02.0D14.1D38.0D49.1
»common (bile) duct
C24.0C78.89D01.5D13.5D37.6D49.0
»concha [See Also: Neoplasm, skin, ear]
C44.20C79.2D04.2D23.2D48.5D49.2
»concha [See Also: Neoplasm, skin, ear]
  »nose
C30.0C78.39D02.3D14.0D38.5D49.1
»conjunctiva
C69.0C79.49D09.2D31.0D48.7D49.89
»connective tissue NEC
C49.9C79.89D21.9D48.1D49.2
»connective tissue NEC
  »abdomen
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »abdominal wall
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »ankle
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »antecubital fossa or space
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »arm
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »auricle (ear)
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »axilla
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »back
C49.6C79.89D21.6D48.1D49.2
»connective tissue NEC
  »breast
»connective tissue NEC
  »buttock
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »calf
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »cervical region
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »cheek
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »chest (wall)
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »chin
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »diaphragm
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »ear (external)
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »elbow
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »extrarectal
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »extremity
C49.9C79.89D21.9D48.1D49.2
»connective tissue NEC
  »extremity
    »lower
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »extremity
    »upper
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »eyelid
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »face
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »finger
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »flank
C49.6C79.89D21.6D48.1D49.2
»connective tissue NEC
  »foot
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »forearm
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »forehead
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »gastric
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »gastrointestinal
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »gluteal region
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »great vessels NEC
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »groin
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »hand
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »head
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »heel
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »hip
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »hypochondrium
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »iliopsoas muscle
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »infraclavicular region
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »inguinal (canal) (region)
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »intestinal
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »intrathoracic
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »ischiorectal fossa
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »jaw
C03.9C79.89D00.03D10.39D48.1D49.0
»connective tissue NEC
  »knee
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »leg
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »limb NEC
C49.9C79.89D21.9D48.1D49.2
»connective tissue NEC
  »limb NEC
    »lower
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »limb NEC
    »upper
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »nates
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »neck
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »Note: For neoplasms of connective tissue (blood vessel, bursa, fascia, ligament, muscle, peripheral nerves, sympathetic and parasympathetic nerves and ganglia, synovia, tendon, etc.) or of morphological types that indicate connective tissue, code according to the list under "Neoplasm, connective tissue". For sites that do not appear in this list, code to neoplasm of that site; e.g., fibrosarcoma, pancreas (C25.9)
»connective tissue NEC
  »Note: Morphological types that indicate connective tissue appear in their proper place in the alphabetic index with the instruction "see Neoplasm, connective tissue ...."
»connective tissue NEC
  »orbit
C69.6C79.49D09.2D31.6D48.1D49.89
»connective tissue NEC
  »overlapping lesion
C49.8
»connective tissue NEC
  »pararectal
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »para-urethral
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »paravaginal
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »pelvis (floor)
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »pelvo-abdominal
C49.8C79.89D21.6D48.1D49.2
»connective tissue NEC
  »perineum
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »perirectal (tissue)
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »periurethral (tissue)
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »popliteal fossa or space
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »presacral
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »psoas muscle
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »pterygoid fossa
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »rectovaginal septum or wall
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »rectovesical
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »retroperitoneum
C48.0C78.6D20.0D48.3D49.0
»connective tissue NEC
  »sacrococcygeal region
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »scalp
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »scapular region
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »shoulder
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »skin (dermis) NEC [See Also: Neoplasm, skin, by site]
C44.90C79.2D04.9D23.9D48.5D49.2
»connective tissue NEC
  »stomach
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »submental
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »supraclavicular region
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »temple
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »temporal region
C49.0C79.89D21.0D48.1D49.2
»connective tissue NEC
  »thigh
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »thoracic (duct) (wall)
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »thorax
C49.3C79.89D21.3D48.1D49.2
»connective tissue NEC
  »thumb
C49.1C79.89D21.1D48.1D49.2
»connective tissue NEC
  »toe
C49.2C79.89D21.2D48.1D49.2
»connective tissue NEC
  »trunk
C49.6C79.89D21.6D48.1D49.2
»connective tissue NEC
  »umbilicus
C49.4C79.89D21.4D48.1D49.2
»connective tissue NEC
  »vesicorectal
C49.5C79.89D21.5D48.1D49.2
»connective tissue NEC
  »wrist
C49.1C79.89D21.1D48.1D49.2
»conus medullaris
C72.0C79.49D33.4D43.4D49.7
»cord (true) (vocal)
C32.0C78.39D02.0D14.1D38.0D49.1
»cord (true) (vocal)
  »false
C32.1C78.39D02.0D14.1D38.0D49.1
»cord (true) (vocal)
  »spermatic
C63.1C79.82D07.69D29.8D40.8D49.59
»cord (true) (vocal)
  »spinal (cervical) (lumbar) (thoracic)
C72.0C79.49D33.4D43.4D49.7
»cornea (limbus)
C69.1C79.49D09.2D31.1D48.7D49.89
»corpus
C56.C79.6D07.39D27.D39.1D49.59
»corpus
  »albicans
C56.C79.6D07.39D27.D39.1D49.59
»corpus
  »callosum, brain
C71.0C79.31D33.2D43.2D49.6
»corpus
  »cavernosum
C60.2C79.82D07.4D29.0D40.8D49.59
»corpus
  »gastric
C16.2C78.89D00.2D13.1D37.1D49.0
»corpus
  »overlapping sites
C54.8
»corpus
  »penis
C60.2C79.82D07.4D29.0D40.8D49.59
»corpus
  »striatum, cerebrum
C71.0C79.31D33.0D43.0D49.6
»corpus
  »uteri
C54.9C79.82D07.0D26.1D39.0D49.59
»corpus
  »uteri
    »isthmus
C54.0C79.82D07.0D26.1D39.0D49.59
»cortex
C74.0C79.7D09.3D35.0D44.1D49.7
»cortex
  »adrenal
C74.0C79.7D09.3D35.0D44.1D49.7
»cortex
  »cerebral
C71.0C79.31D33.0D43.0D49.6
»costal cartilage
C41.3C79.51D16.7D48.0D49.2
»costovertebral joint
C41.3C79.51D16.7D48.0D49.2
»Cowper's gland
C68.0C79.19D09.19D30.4D41.3D49.59
»cranial (fossa, any)
C71.9C79.31D33.2D43.2D49.6
»cranial (fossa, any)
  »meninges
C70.0C79.32D32.0D42.0D49.7
»cranial (fossa, any)
  »nerve
C72.50C79.49D33.3D43.3D49.7
»cranial (fossa, any)
  »nerve
    »specified NEC
C72.59C79.49D33.3D43.3D49.7
»craniobuccal pouch
C75.2C79.89D09.3D35.2D44.3D49.7
»craniopharyngeal (duct) (pouch)
C75.2C79.89D09.3D35.3D44.4D49.7
»cricoid
C13.0C79.89D00.08D10.7D37.05D49.0
»cricoid
  »cartilage
C32.3C78.39D02.0D14.1D38.0D49.1
»cricopharynx
C13.0C79.89D00.08D10.7D37.05D49.0
»crypt of Morgagni
C21.8C78.5D01.3D12.9D37.8D49.0
»crystalline lens
C69.4C79.49D09.2D31.4D48.7D49.89
»cul-de-sac (Douglas')
C48.1C78.6D20.1D48.4D49.0
»cuneiform cartilage
C32.3C78.39D02.0D14.1D38.0D49.1
»cutaneous
»cutis
»cystic (bile) duct (common)
C24.0C78.89D01.5D13.5D37.6D49.0