2021 Neoplasms of Unspecified Behavior ICD-10-CM Codes

List of 2021 Unspecified Behavior Neoplasms found in the ICD-10-CM Table of Neoplasms. The 12 codes in this list are used to specify neoplasms of unspecified behavior.

ICD CodeDescriptionCategoryApplicable To
D49.0Neoplasm of unspecified behavior of digestive systemNeoplasms of unspecified behavior (D49)adenoid (pharynx) (tissue); alimentary canal or tract NEC; alveolar; alveolarmucosa; alveolarmucosalower; alveolarmucosaupper; alveolarridge or processmucosa; alveolarridge or processmucosalower; alveolarridge or processmucosaupper; alveolarsulcus; alveolus; alveoluslower; alveolusupper; ampulla of Vater; anorectum, anorectal (junction); antrum (Highmore) (maxillary)pyloric; anus, anal; anus, anal...
D49.1Neoplasm of unspecified behavior of respiratory systemNeoplasms of unspecified behavior (D49)antrum (Highmore) (maxillary); antrum (Highmore) (maxillary)tympanicum; aryepiglottic foldlaryngeal aspect; arytenoid (cartilage); auditorycanal (external) (skin)internal; auditorytube; bronchiogenic, bronchogenic (lung); bronchiole; bronchus; bronchuscarina; bronchuslower lobe of lung; bronchusmain; bronchusmiddle lobe of lung; bronchusupper lobe of lung; carina (bronchus); cartilage (articular) ...
D49.2Neoplasm of unspecified behavior of bone, soft tissue, and skinNeoplasms of unspecified behavior (D49)abdomen, abdominalwall [See Also: Neoplasm, abdomen, wall, skin]; abdomen, abdominalwall [See Also: Neoplasm, abdomen, wall, skin]connective tissue; adipose tissue [See Also: Neoplasm, connective tissue]; ala nasi (external) [See Also: Neoplasm, skin, nose]; alveolarridge or process; alveolarridge or processlower; alveolarridge or processupper; anus, analmargin [See Also: Neoplasm, anus, skin]; an...
D49.3Neoplasm of unspecified behavior of breastNeoplasms of unspecified behavior (D49)areola; breast (connective tissue) (glandular tissue) (soft parts); breast (connective tissue) (glandular tissue) (soft parts)areola; breast (connective tissue) (glandular tissue) (soft parts)axillary tail; breast (connective tissue) (glandular tissue) (soft parts)central portion; breast (connective tissue) (glandular tissue) (soft parts)inner; breast (connective tissue) (glandular tissue) (soft p...
D49.4Neoplasm of unspecified behavior of bladderNeoplasms of unspecified behavior (D49)bladder (urinary); bladder (urinary)dome; bladder (urinary)neck; bladder (urinary)orifice; bladder (urinary)orificeureteric; bladder (urinary)orificeurethral; bladder (urinary)sphincter; bladder (urinary)trigone; bladder (urinary)urachus; bladder (urinary)wall; bladder (urinary)wallanterior; bladder (urinary)walllateral; bladder (urinary)wallposterior; urachus; ureter, ureteralorifice (bladder); u...
D49.51Neoplasm of unspecified behavior of kidneyNeoplasms of unspecified behavior (D49)calyx, renal; kidney (parenchymal); kidney (parenchymal)calyx; kidney (parenchymal)hilus; kidney (parenchymal)pelvis; parenchyma, kidney; pelvis, pelvicrenal; renal; renalcalyx; renalhilus; renalparenchyma; renalpelvis
D49.59Neoplasm of unspecified behavior of other genitourinary organNeoplasms of unspecified behavior (D49)adnexa (uterine); Bartholin's gland; broad ligament; bulbourethral gland; cervix (cervical) (uteri) (uterus); cervix (cervical) (uteri) (uterus)canal; cervix (cervical) (uteri) (uterus)endocervix (canal) (gland); cervix (cervical) (uteri) (uterus)exocervix; cervix (cervical) (uteri) (uterus)external os; cervix (cervical) (uteri) (uterus)internal os; cervix (cervical) (uteri) (uterus)nabothian glan...
D49.6Neoplasm of unspecified behavior of brainNeoplasms of unspecified behavior (D49)basal ganglia; basis pedunculi; brain NEC; brain NECbasal ganglia; brain NECcerebellopontine angle; brain NECcerebellum NOS; brain NECcerebrum; brain NECchoroid plexus; brain NECcorpus callosum; brain NECcorpus striatum; brain NECcortex (cerebral); brain NECfrontal lobe; brain NECglobus pallidus; brain NEChippocampus; brain NEChypothalamus; brain NECinternal capsule; brain NECmedulla oblongata; br...
D49.7Neoplasm of unspecified behavior of endocrine glands and other parts of nervous systemNeoplasms of unspecified behavior (D49)acoustic nerve; adrenal; adrenalcapsule; adrenalcortex; adrenalgland; adrenalmedulla; aortic body; arachnoid; arachnoidcerebral; arachnoidspinal; auditorynerve; brain NECmeninges; carotid (artery)body; cauda equina; cerebrum, cerebra (cortex) (hemisphere) (white matter)meninges; chiasma opticum; conus medullaris; cord (true) (vocal)spinal (cervical) (lumbar) (thoracic); cortex; cortexadrenal; cran...
D49.81Neoplasm of unspecified behavior of retina and choroidNeoplasms of unspecified behavior (D49)choroid; retina
D49.89Neoplasm of unspecified behavior of other specified sitesNeoplasms of unspecified behavior (D49)abdomen, abdominal; abdomen, abdominalcavity; abdomen, abdominalorgan; abdomen, abdominalviscera; abdominopelvic; ankle NEC; antecubital fossa or space; arm NEC; atrium, cardiac; axilla, axillary; back NEC; bone (periosteum)marrow NEC (any bone); buttock NEC; calf; cervical region; cheek; chest (wall) NEC; ciliary body; conjunctiva; connective tissue NECorbit; cornea (limbus); crystalline lens; el...
D49.9Neoplasm of unspecified behavior of unspecified siteNeoplasms of unspecified behavior (D49)unknown site or unspecified