NEOPLASMS OF UNCERTAIN BEHAVIOR (235-238)

• Note: Categories 235-238 classify by site certain histo-morphologically well-defined neoplasms, the subsequent behavior of which cannot be predicted from the present appearance.
• 235 Neoplasm of uncertain behavior of digestive and respiratory systems
  • 235.0 Major salivary glands
    • Gland:
      • parotid
      • sublingual
      • submandibular
    • Excludes: minor salivary glands (235.1)
  • 235.1 Lip, oral cavity, and pharynx
    • Gingiva
    • Hypopharynx
    • Minor salivary glands
    • Mouth
    • Nasopharynx
    • Oropharynx
    • Tongue
    • Excludes: aryepiglottic fold or interarytenoid fold, laryngeal aspect (235.6)
      • epiglottis:
        • NOS (235.6)
        • suprahyoid portion (235.6)
        • skin of lip (238.2)
  • 235.2 Stomach, intestines, and rectum
  • 235.3 Liver and biliary passages
    • Ampulla of Vater
    • Bile ducts [any]
    • Gallbladder
    • Liver
  • 235.4 Retroperitoneum and peritoneum
  • 235.5 Other and unspecified digestive organs
    • Anal:
      • canal
      • sphincter
    • Anus NOS
    • Esophagus
    • Pancreas
    • Spleen
    • Excludes: anus:
      • margin (238.2)
      • skin (238.2)
      • perianal skin (238.2)
  • 235.6 Larynx
    • Excludes: aryepiglottic fold or interarytenoid fold:
      • NOS (235.1)
      • hypopharyngeal aspect (235.1)
      • marginal zone (235.1)
  • 235.7 Trachea, bronchus, and lung
  • 235.8 Pleura, thymus, and mediastinum
  • 235.9 Other and unspecified respiratory organs
    • Accessory sinuses
    • Middle ear
    • Nasal cavities
    • Respiratory organ NOS
    • Excludes: ear (external) (skin) (238.2)
      • nose (238.8)
        • skin (238.2)
• 236 Neoplasm of uncertain behavior of genitourinary organs
  • 236.0 Uterus
  • 236.1 Placenta
    • Chorioadenoma (destruens)
    • Invasive mole
    • Malignant hydatid(iform) mole
  • 236.2 Ovary
    • Use additional code to identify any functional activity
  • 236.3 Other and unspecified female genital organs
  • 236.4 Testis
    • Use additional code to identify any functional activity
  • 236.5 Prostate
  • 236.6 Other and unspecified male genital organs
  • 236.7 Bladder
  • 236.9 Other and unspecified urinary organs
    • 236.90 Urinary organ, unspecified
    • 236.91 Kidney and ureter
    • 236.99 Other
• 237 Neoplasm of uncertain behavior of endocrine glands and nervous system
  • 237.0 Pituitary gland and craniopharyngeal duct
    • Use additional code to identify any functional activity
  • 237.1 Pineal gland
  • 237.2 Adrenal gland
    • Suprarenal gland
    • Use additional code to identify any functional activity
  • 237.3 Paraganglia
    • Aortic body
    • Carotid body
    • Coccygeal body
    • Glomus jugulare
  • 237.4 Other and unspecified endocrine glands
    • Parathyroid gland
    • Thyroid gland
  • 237.5 Brain and spinal cord
  • 237.6 Meninges
    • Meninges:
      • NOS
      • cerebral
      • spinal
  • 237.7 Neurofibromatosis
    • von Recklinghausen's disease
    • 237.70 Neurofibromatosis, unspecified
    • 237.71 Neurofibromatosis, type 1 [von Recklinghausen's disease]
    • 237.72 Neurofibromatosis, type 2 [acoustic neurofibromatosis]
  • 237.9 Other and unspecified parts of nervous system
    • Cranial nerves
    • Excludes: peripheral, sympathetic, and parasympathetic nerves and ganglia (238.1)
• 238 Neoplasm of uncertain behavior of other and unspecified sites and tissues
  • 238.0 Bone and articular cartilage
    • Excludes: cartilage:
      • ear (238.1)
      • eyelid (238.1)
      • larynx (235.6)
      • nose (235.9)
      • synovia (238.1)
  • 238.1 Connective and other soft tissue
    • Peripheral, sympathetic, and parasympathetic nerves and ganglia
    • Excludes: cartilage (of):
      • articular (238.0)
      • larynx (235.6)
      • nose (235.9)
      • connective tissue of breast (238.3)
  • 238.2 Skin
    • Excludes: anus NOS (235.5)
      • skin of genital organs (236.3, 236.6)
      • vermilion border of lip (235.1)
  • 238.3 Breast
    • Excludes: skin of breast (238.2)
  • 238.4 Polycythemia vera
  • 238.5 Histiocytic and mast cells
    • Mast cell tumor NOS
    • Mastocytoma NOS
  • 238.6 Plasma cells
    • Plasmacytoma NOS
    • Solitary myeloma
  • 238.7 Other lymphatic and hematopoietic tissues
    • Disease:
      • lymphoproliferative (chronic) NOS
      • myeloproliferative (chronic) NOS
    • Idiopathic thrombocythemia
    • Megakaryocytic myelosclerosis
    • Myelodysplastic syndrome
    • Myelosclerosis with myeloid metaplasia
    • Panmyelosis (acute)
    • Excludes: myelofibrosis (289.8)
      • myelosclerosis NOS (289.8)
      • myelosis:
        • NOS (205.9)
        • megakaryocytic (207.2)
  • 238.8 Other specified sites
    • Eye
    • Heart
    • Excludes: eyelid (skin) (238.2)
      • cartilage (238.1)
  • 238.9 Site unspecified