2021 Secondary Malignant Neoplasms ICD-10-CM Codes

List of 2021 Secondary Malignant Neoplasms found in the ICD-10-CM Table of Neoplasms. The 37 codes in this list are used to specify secondary malignant neoplasms, or cancers are those whose behavior if untreated could cause the death of a patient. To properly code a neoplasm, first determine if the neoplasm is benign, in-situ, malignant or of uncertain or unspecified histologic behavior. If the neoplasm is malignant code any secondary sites should also be determined.

ICD CodeDescriptionCategoryApplicable To
C77.0Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neckSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)auricular (anterior) (posterior); lymph, lymphatic channel NECgland (secondary)cervical; lymph, lymphatic channel NECgland (secondary)cervicofacial; lymph, lymphatic channel NECgland (secondary)face; lymph, lymphatic channel NECgland (secondary)head; lymph, lymphatic channel NECgland (secondary)jugular; lymph, lymphatic channel NECgland (secondary)mandi...
C77.1Secondary and unspecified malignant neoplasm of intrathoracic lymph nodesSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)bronchial; lymph, lymphatic channel NECgland (secondary)bronchopulmonary; lymph, lymphatic channel NECgland (secondary)diaphragmatic; lymph, lymphatic channel NECgland (secondary)epigastric, inferior; lymph, lymphatic channel NECgland (secondary)esophageal; lymph, lymphatic channel NECgland (secondary)hilar (pulmonary); lymph, lymphatic channel NECgland...
C77.2Secondary and unspecified malignant neoplasm of intra-abdominal lymph nodesSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)abdominal; lymph, lymphatic channel NECgland (secondary)aortic; lymph, lymphatic channel NECgland (secondary)celiac; lymph, lymphatic channel NECgland (secondary)colic; lymph, lymphatic channel NECgland (secondary)common duct; lymph, lymphatic channel NECgland (secondary)gastric; lymph, lymphatic channel NECgland (secondary)hepatic; lymph, lymphatic cha...
C77.3Secondary and unspecified malignant neoplasm of axilla and upper limb lymph nodesSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)arm; lymph, lymphatic channel NECgland (secondary)axilla, axillary; lymph, lymphatic channel NECgland (secondary)brachial; lymph, lymphatic channel NECgland (secondary)cubital; lymph, lymphatic channel NECgland (secondary)epitrochlear; lymph, lymphatic channel NECgland (secondary)infraclavicular; lymph, lymphatic channel NECgland (secondary)limbupper; l...
C77.4Secondary and unspecified malignant neoplasm of inguinal and lower limb lymph nodesSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)Cloquet; lymph, lymphatic channel NECgland (secondary)femoral; lymph, lymphatic channel NECgland (secondary)groin; lymph, lymphatic channel NECgland (secondary)inguina, inguinal; lymph, lymphatic channel NECgland (secondary)leg; lymph, lymphatic channel NECgland (secondary)limb; lymph, lymphatic channel NECgland (secondary)limblower; lymph, lymphatic ch...
C77.5Secondary and unspecified malignant neoplasm of intrapelvic lymph nodesSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)hypogastric; lymph, lymphatic channel NECgland (secondary)iliac; lymph, lymphatic channel NECgland (secondary)intrapelvic; lymph, lymphatic channel NECgland (secondary)obturator; lymph, lymphatic channel NECgland (secondary)paracervical; lymph, lymphatic channel NECgland (secondary)parametrial; lymph, lymphatic channel NECgland (secondary)pelvic; lymph,...
C77.8Secondary and unspecified malignant neoplasm of lymph nodes of multiple regionsSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary)multiple sites in categories C77.0 - C77.5
C77.9Secondary and unspecified malignant neoplasm of lymph node, unspecifiedSecondary and unspecified malignant neoplasm of lymph nodes (C77)lymph, lymphatic channel NECgland (secondary); lymph, lymphatic channel NECgland (secondary)site NEC
C78.0Secondary malignant neoplasm of lungSecondary malignant neoplasm of resp and digestive organs (C78)bronchiogenic, bronchogenic (lung); bronchiole; bronchus; bronchuscarina; bronchuslower lobe of lung; bronchusmain; bronchusmiddle lobe of lung; bronchusupper lobe of lung; carina (bronchus); hilus of lung; lingula, lung; lung; lungazygos lobe; lungcarina; lunghilus; lunglinqula; lunglobe NEC; lunglower lobe; lungmain bronchus; lungmiddle lobe; lungupper lobe; pulmonary [See Also: Neoplasm, lung];...
C78.1Secondary malignant neoplasm of mediastinumSecondary malignant neoplasm of resp and digestive organs (C78)mediastinum, mediastinal; mediastinum, mediastinalanterior; mediastinum, mediastinalposterior; substernal
C78.2Secondary malignant neoplasm of pleuraSecondary malignant neoplasm of resp and digestive organs (C78)pleura, pleural (cavity); pleura, pleural (cavity)parietal; pleura, pleural (cavity)visceral
C78.30Secondary malignant neoplasm of unspecified respiratory organSecondary malignant neoplasm of resp and digestive organs (C78)respiratory; respiratoryorgans or system NEC; respiratorytract NEC; respiratorytract NECupper
C78.39Secondary malignant neoplasm of other respiratory organsSecondary malignant neoplasm of resp and digestive organs (C78)antrum (Highmore) (maxillary); antrum (Highmore) (maxillary)tympanicum; aryepiglottic foldlaryngeal aspect; arytenoid (cartilage); auditorycanal (external) (skin)internal; auditorytube; auricular canal (external) [See Also: Neoplasm, skin, ear]internal; cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]arytenoid; cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]bronchi; cartil...
C78.4Secondary malignant neoplasm of small intestineSecondary malignant neoplasm of resp and digestive organs (C78)duodenojejunal junction; duodenum; ileum; intestine, intestinalsmall; intestine, intestinalsmallduodenum; intestine, intestinalsmallileum; intestine, intestinalsmalljejunum; jejunum; Meckel diverticulum, malignant
C78.5Secondary malignant neoplasm of large intestine and rectumSecondary malignant neoplasm of resp and digestive organs (C78)anorectum, anorectal (junction); anus, anal; anus, analcanal; anus, analcloacogenic zone; anus, analsphincter; appendix; canal; canalanal; caput coli; cecum; cloacogenic zone; colon [See Also: Neoplasm, intestine, large]; colon [See Also: Neoplasm, intestine, large]with rectum; crypt of Morgagni; hemorrhoidal zone; hepatic [See Also: Index to disease, by histology]flexure (colon); ileocecum, ileoc...
C78.6Secondary malignant neoplasm of retroperitoneum and peritoneumSecondary malignant neoplasm of resp and digestive organs (C78)cavityperitoneal; connective tissue NECretroperitoneum; cul-de-sac (Douglas'); Douglas' cul-de-sac or pouch; mesentery, mesenteric; mesoappendix; mesocolon; omentum; paranephric; periadrenal (tissue); perinephric; peripancreatic; perirenal (tissue); peritoneum, peritoneal (cavity); peritoneum, peritoneal (cavity)parietal; peritoneum, peritoneal (cavity)pelvic; peritoneum, peritoneal (cavity)specif...
C78.7Secondary malignant neoplasm of liver and intrahepatic bile ductSecondary malignant neoplasm of resp and digestive organs (C78)bile or biliary (tract)canaliculi (biliferi) (intrahepatic); bile or biliary (tract)duct or passage (common) (cystic) (extrahepatic)intrahepatic; canaliculi, biliary (biliferi) (intrahepatic); gall duct (extrahepatic)intrahepatic; hepatic [See Also: Index to disease, by histology]; hepatic [See Also: Index to disease, by histology]primary; hepatoblastoma; hepatoma; intrahepatic (bile) duct; liver ...
C78.80Secondary malignant neoplasm of unspecified digestive organSecondary malignant neoplasm of resp and digestive organs (C78)alimentary canal or tract NEC; intestine, intestinal
C78.89Secondary malignant neoplasm of other digestive organsSecondary malignant neoplasm of resp and digestive organs (C78)ampulla of Vater; antrum (Highmore) (maxillary)pyloric; bile or biliary (tract); bile or biliary (tract)canals, interlobular; bile or biliary (tract)duct or passage (common) (cystic) (extrahepatic); bile or biliary (tract)duct or passage (common) (cystic) (extrahepatic)interlobular; bile or biliary (tract)duct or passage (common) (cystic) (extrahepatic)intrahepaticand extrahepatic; cardia (gastric...
C79.0Secondary malignant neoplasm of kidney and renal pelvisSecondary malignant neoplasm of other and unspecified sites (C79)calyx, renal; junctionpelviureteric; kidney (parenchymal); kidney (parenchymal)calyx; kidney (parenchymal)hilus; kidney (parenchymal)pelvis; parenchyma, kidney; pelvis, pelvicrenal; renal; renalcalyx; renalhilus; renalparenchyma; renalpelvis
C79.10Secondary malignant neoplasm of unspecified urinary organsSecondary malignant neoplasm of other and unspecified sites (C79)urinary organ or system
C79.11Secondary malignant neoplasm of bladderSecondary malignant neoplasm of other and unspecified sites (C79)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...
C79.19Secondary malignant neoplasm of other urinary organsSecondary malignant neoplasm of other and unspecified sites (C79)bulbourethral gland; Cowper's gland; paraurethralgland; prostate (gland)utricle; Skene's gland; ureter, ureteral; urethra, urethral (gland); urinary organ or systemspecified sites NEC; utricle, prostatic
C79.2Secondary malignant neoplasm of skinSecondary malignant neoplasm of other and unspecified sites (C79)abdomen, abdominalwall [See Also: Neoplasm, abdomen, wall, skin]; ala nasi (external) [See Also: Neoplasm, skin, nose]; anus, analmargin [See Also: Neoplasm, anus, skin]; anus, analskin; auditory; auditorycanal (external) (skin); auricle, ear [See Also: Neoplasm, skin, ear]; auricular canal (external) [See Also: Neoplasm, skin, ear]; axilla, axillaryfold [See Also: Neoplasm, skin, trunk]; breast (...
C79.31Secondary malignant neoplasm of brainSecondary malignant neoplasm of other and unspecified sites (C79)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...
C79.32Secondary malignant neoplasm of cerebral meningesSecondary malignant neoplasm of other and unspecified sites (C79)arachnoidcerebral; brain NECmeninges; cerebrum, cerebra (cortex) (hemisphere) (white matter)meninges; cranial (fossa, any)meninges; dura (cranial) (mater)cerebral; falx (cerebella) (cerebri); meningesbrain; meningescerebral; meningescrainial; meningesintracranial; pia matercerebral; pia matercranial; subdural; tentorium (cerebelli)
C79.40Secondary malignant neoplasm of unspecified part of nervous systemSecondary malignant neoplasm of other and unspecified sites (C79)central nervous system; nervous system (central); pia mater
C79.49Secondary malignant neoplasm of other parts of nervous systemSecondary malignant neoplasm of other and unspecified sites (C79)acoustic nerve; arachnoid; arachnoidspinal; auditorynerve; cauda equina; chiasma opticum; choroid; ciliary body; conjunctiva; connective tissue NECorbit; conus medullaris; cord (true) (vocal)spinal (cervical) (lumbar) (thoracic); cornea (limbus); cranial (fossa, any)nerve; cranial (fossa, any)nervespecified NEC; crystalline lens; dura (cranial) (mater); dura (cranial) (mater)spinal; epidural; extr...
C79.51Secondary malignant neoplasm of boneSecondary malignant neoplasm of other and unspecified sites (C79)alveolarridge or process; alveolarridge or processlower; alveolarridge or processupper; atlas; bone (periosteum); bone (periosteum)acetabulum; bone (periosteum)ankle; bone (periosteum)arm NEC; bone (periosteum)astragalus; bone (periosteum)atlas; bone (periosteum)axis; bone (periosteum)back NEC; bone (periosteum)calcaneus; bone (periosteum)calvarium; bone (periosteum)carpus (any); bone (periosteum)...
C79.52Secondary malignant neoplasm of bone marrowSecondary malignant neoplasm of other and unspecified sites (C79)bone (periosteum)marrow NEC (any bone); marrow (bone) NEC; spine, spinal (column)marrow NEC; vertebra (column)marrow NEC
C79.6Secondary malignant neoplasm of ovarySecondary malignant neoplasm of other and unspecified sites (C79)corpus; corpusalbicans; ovary
C79.7Secondary malignant neoplasm of adrenal glandSecondary malignant neoplasm of other and unspecified sites (C79)adrenal; adrenalcapsule; adrenalcortex; adrenalgland; adrenalmedulla; cortex; cortexadrenal; medulla; medullaadrenal; suprarenal; suprarenalcapsule; suprarenalcortex; suprarenalgland; suprarenalmedulla
C79.8Secondary malignant neoplasm of other specified sitesSecondary malignant neoplasm of other and unspecified sites (C79)abdomen, abdominal; abdomen, abdominalcavity; abdomen, abdominalorgan; abdomen, abdominalviscera; abdomen, abdominalwall [See Also: Neoplasm, abdomen, wall, skin]connective tissue; abdominopelvic; alveolarridge or processcarcinoma; alveolarridge or processcarcinomalower; alveolarridge or processcarcinomaupper
C79.81Secondary malignant neoplasm of breastSecondary malignant neoplasm of other and unspecified sites (C79)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...
C79.82Secondary malignant neoplasm of genital organsSecondary malignant neoplasm of other and unspecified sites (C79)Bartholin's gland; broad ligament; 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 gland; cervix (cervical) (uteri) (uterus)sq...
C79.89Secondary malignant neoplasm of other specified sitesSecondary malignant neoplasm of other and unspecified sites (C79)adenoid (pharynx) (tissue); adipose tissue [See Also: Neoplasm, connective tissue]; adnexa (uterine); alveolar; alveolarmucosa; alveolarmucosalower; alveolarmucosaupper; alveolarridge or processmucosa; alveolarridge or processmucosalower; alveolarridge or processmucosaupper; alveolarsulcus; alveolus; alveoluslower; alveolusupper; ankle NEC; antecubital fossa or space; aorta (thoracic); aorta (thor...
C79.9Secondary malignant neoplasm of unspecified siteSecondary malignant neoplasm of other and unspecified sites (C79)metastatic NEC [See Also: Neoplasm, by site, secondary]; unknown site or unspecified