ICD-10-CM Tag List · Table of Neoplasms · FY 2026 58 Codes
2026 Carcinoma In Situ ICD-10-CM Codes ICD-10-CM
Home › ICD-10-CM Codes List › Tags › Carcinoma In SituThe FY 2026 dataset contains 58 carcinoma in situ codes across 7 code blocks. Carcinoma in situ codes document non-invasive cancers that have not spread beyond the tissue of origin, the Ca In Situ column of the Table of Neoplasms . Each code below lists the anatomical sites that map to it.
✓ Built from the official CMS FY 2026 dataset Effective Oct 1, 2025 – Sep 30, 2026
Assignment requires pathology confirming no invasion into surrounding tissue. Once invasion is documented, the malignant primary codes apply.
ICD-10-CM
All Carcinoma In Situ Codes 58 codes · searchable by anatomical site 58 of 58 shown
D00.00 Carcinoma in situ of oral cavity, unspecified site D00.01 Carcinoma in situ of labial mucosa and vermilion border D00.02 Carcinoma in situ of buccal mucosa D00.03 Carcinoma in situ of gingiva and edentulous alveolar ridge D00.04 Carcinoma in situ of soft palate D00.05 Carcinoma in situ of hard palate D00.06 Carcinoma in situ of floor of mouth D00.07 Carcinoma in situ of tongue D00.08 Carcinoma in situ of pharynx D00.1 Carcinoma in situ of esophagus D00.2 Carcinoma in situ of stomach D01.0 Carcinoma in situ of colon D01.1 Carcinoma in situ of rectosigmoid junction D01.2 Carcinoma in situ of rectum D01.3 Carcinoma in situ of anus and anal canal D01.40 Carcinoma in situ of unspecified part of intestine D01.49 Carcinoma in situ of other parts of intestine D01.5 Carcinoma in situ of liver, gallbladder and bile ducts D01.7 Carcinoma in situ of other specified digestive organs D01.9 Carcinoma in situ of digestive organ, unspecified D02.0 Carcinoma in situ of larynx D02.1 Carcinoma in situ of trachea D02.2 Carcinoma in situ of bronchus and lung Non-billable header D02.21 Carcinoma in situ of right bronchus and lung D02.3 Carcinoma in situ of other parts of respiratory system D02.4 Carcinoma in situ of respiratory system, unspecified D04.0 Carcinoma in situ of skin of lip D04.1 Carcinoma in situ of skin of eyelid, including canthus Non-billable header D04.2 Carcinoma in situ of skin of ear and external auricular canal Non-billable header D04.30 Carcinoma in situ of skin of unspecified part of face D04.39 Carcinoma in situ of skin of other parts of face D04.4 Carcinoma in situ of skin of scalp and neck D04.5 Carcinoma in situ of skin of trunk D04.6 Carcinoma in situ of skin of upper limb, including shoulder Non-billable header D04.7 Carcinoma in situ of skin of lower limb, including hip Non-billable header D04.8 Carcinoma in situ of skin of other sites D04.9 Carcinoma in situ of skin, unspecified D06.0 Carcinoma in situ of endocervix D06.1 Carcinoma in situ of exocervix D06.7 Carcinoma in situ of other parts of cervix D06.9 Carcinoma in situ of cervix, unspecified D07.0 Carcinoma in situ of endometrium D07.1 Carcinoma in situ of vulva D07.2 Carcinoma in situ of vagina D07.30 Carcinoma in situ of unspecified female genital organs D07.39 Carcinoma in situ of other female genital organs D07.4 Carcinoma in situ of penis D07.5 Carcinoma in situ of prostate D07.60 Carcinoma in situ of unspecified male genital organs D07.61 Carcinoma in situ of scrotum D07.69 Carcinoma in situ of other male genital organs D09.0 Carcinoma in situ of bladder D09.10 Carcinoma in situ of unspecified urinary organ D09.19 Carcinoma in situ of other urinary organs D09.2 Carcinoma in situ of eye Non-billable header D09.3 Carcinoma in situ of thyroid and other endocrine glands D09.8 Carcinoma in situ of other specified sites D09.9 Carcinoma in situ, unspecified
Questions About This Page How do I find the right code for a specific site? Type the anatomical site into the filter above. Every code on this page carries the site entries that map to it in the Table of Neoplasms. For all six behavior columns side by side, use the Table of Neoplasms .
How is neoplasm behavior determined? The pathology or clinical documentation names the behavior. When the description of the neoplasm states the behavior, that description overrides the Index guidance, and the matching column of the Table of Neoplasms supplies the code.
How many carcinoma in situ codes are there? The FY 2026 dataset contains 58 carcinoma in situ codes across 7 code blocks, 52 of them billable.
Related References Source: official CMS FY 2026 ICD-10-CM release, effective October 1, 2025 through September 30, 2026.
Anatomical sites that code here: D00.00
32 anatomical sites in the table book-leaf (mouth) buccal (cavity) cavity cavity › buccal cavity › oral junction › hard and soft palate mouth mouth › roof mouth › specified part NEC mouth › vestibule oral (cavity) oral (cavity) › ill-defined
20 more anatomical sites map to this code.
Anatomical sites that code here: D00.01
21 anatomical sites in the table commissure commissure › labial, lip labial lip lip › commissure lip › external lip › external › lower lip › external › upper lip › internal lip › internal › lower lip › internal › upper lip › lipstick area
9 more anatomical sites map to this code.
Anatomical sites that code here: D00.02
13 anatomical sites in the table alveolar › sulcus buccal (cavity) › commissure buccal (cavity) › groove (lower) (upper) buccal (cavity) › mucosa buccal (cavity) › sulcus (lower) (upper) cheek › inner aspect cheek › internal cheek › mucosa labial › sulcus (lower) (upper) mucosa › buccal mucosa › cheek mucosa › oral
1 more anatomical sites map to this code.
Anatomical sites that code here: D00.03
35 anatomical sites in the table alveolar alveolar › mucosa alveolar › mucosa › lower alveolar › mucosa › upper alveolar › ridge or process › mucosa alveolar › ridge or process › mucosa › lower alveolar › ridge or process › mucosa › upper alveolus alveolus › lower alveolus › upper connective tissue NEC › jaw gingiva (alveolar) (marginal)
23 more anatomical sites map to this code.
Anatomical sites that code here: D00.04
2 anatomical sites in the table palate › soft uvula
Anatomical sites that code here: D00.05
1 anatomical site in the table palate › hard
Anatomical sites that code here: D00.06
4 anatomical sites in the table mouth › floor mouth › floor › anterior portion mouth › floor › lateral portion sublingual
Anatomical sites that code here: D00.07
25 anatomical sites in the table frenulum frenulum › linguae lingual NEC tongue tongue › anterior (two-thirds) NEC tongue › anterior (two-thirds) NEC › dorsal surface tongue › anterior (two-thirds) NEC › ventral surface tongue › base (dorsal surface) tongue › border (lateral) tongue › dorsal surface NEC tongue › fixed part NEC tongue › foreamen cecum
13 more anatomical sites map to this code.
Anatomical sites that code here: D00.08
79 anatomical sites in the table adenoid (pharynx) (tissue) aryepiglottic fold aryepiglottic fold › hypopharyngeal aspect aryepiglottic fold › marginal zone auditory › tube › opening branchial (cleft) (cyst) (vestiges) cartilage (articular) (joint) NEC › epiglottis › anterior surface choana cricoid cricopharynx epiglottis › anterior aspect or surface epiglottis › free border (margin)
67 more anatomical sites map to this code.
Anatomical sites that code here: D00.1
9 anatomical sites in the table esophagus esophagus › abdominal esophagus › cervical esophagus › distal (third) esophagus › lower (third) esophagus › middle (third) esophagus › proximal (third) esophagus › thoracic esophagus › upper (third)
Anatomical sites that code here: D00.2
32 anatomical sites in the table antrum (Highmore) (maxillary) › pyloric cardia (gastric) cardiac orifice (stomach) cardio-esophageal junction cardio-esophagus corpus › gastric esophagogastric junction fundus fundus › stomach gastroesophageal junction junction › cardioesophageal junction › esophagogastric
20 more anatomical sites map to this code.
Anatomical sites that code here: D01.0
26 anatomical sites in the table appendix caput coli cecum hepatic › flexure (colon) ileocecum, ileocecal (coil) (junction) (valve) intestine, intestinal › large intestine, intestinal › large › appendix intestine, intestinal › large › caput coli intestine, intestinal › large › cecum intestine, intestinal › large › colon intestine, intestinal › large › colon › ascending intestine, intestinal › large › colon › caput
14 more anatomical sites map to this code.
Anatomical sites that code here: D01.1
7 anatomical sites in the table colon › with rectum intestine, intestinal › large › colon › and rectum junction › pelvirectal junction › rectosigmoid pelvirectal junction rectosigmoid (junction) rectum (ampulla) › and colon
Anatomical sites that code here: D01.2
1 anatomical site in the table rectum (ampulla)
Anatomical sites that code here: D01.3
14 anatomical sites in the table anorectum, anorectal (junction) anus, anal anus, anal › canal anus, anal › cloacogenic zone anus, anal › sphincter canal canal › anal cloacogenic zone crypt of Morgagni hemorrhoidal zone junction junction › anorectal
2 more anatomical sites map to this code.
Anatomical sites that code here: D01.40
3 anatomical sites in the table intestine, intestinal intestine, intestinal › small intestine, intestinal › tract NEC
Anatomical sites that code here: D01.49
8 anatomical sites in the table duodenojejunal junction duodenum ileum intestine, intestinal › small › duodenum intestine, intestinal › small › ileum intestine, intestinal › small › jejunum jejunum Meckel diverticulum, malignant
Anatomical sites that code here: D01.5
28 anatomical sites in the table ampulla of Vater bile or biliary (tract) bile or biliary (tract) › canaliculi (biliferi) (intrahepatic) 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) › intrahepatic bile or biliary (tract) › duct or passage (common) (cystic) (extrahepatic) › intrahepatic › and extrahepatic canaliculi, biliary (biliferi) (intrahepatic) cholangiole choledochal duct common (bile) duct
16 more anatomical sites map to this code.
Anatomical sites that code here: D01.7
13 anatomical sites in the table insular tissue (pancreas) islands or islets of Langerhans Langerhans, islands or islets pancreas pancreas › body pancreas › duct (of Santorini) (of Wirsung) pancreas › head pancreas › islet cells pancreas › neck pancreas › tail Santorini's duct spleen, splenic NEC
1 more anatomical sites map to this code.
Anatomical sites that code here: D01.9
4 anatomical sites in the table alimentary canal or tract NEC digestive organs, system, tube, or tract NEC gastrocolic gastrointestinal (tract) NEC
Anatomical sites that code here: D02.0
33 anatomical sites in the table aryepiglottic fold › laryngeal aspect arytenoid (cartilage) cartilage (articular) (joint) NEC › arytenoid cartilage (articular) (joint) NEC › cricoid cartilage (articular) (joint) NEC › cuneiform cartilage (articular) (joint) NEC › epiglottis cartilage (articular) (joint) NEC › larynx, laryngeal cartilage (articular) (joint) NEC › thyroid commissure › laryngeal cord (true) (vocal) cord (true) (vocal) › false cricoid › cartilage
21 more anatomical sites map to this code.
Anatomical sites that code here: D02.1
4 anatomical sites in the table cartilage (articular) (joint) NEC › trachea trachea (cartilage) (mucosa) tracheobronchial windpipe
Anatomical sites that code here: D02.2
21 anatomical sites in the table bronchiogenic, bronchogenic (lung) bronchiole bronchus bronchus › carina bronchus › lower lobe of lung bronchus › main bronchus › upper lobe of lung carina (bronchus) hilus of lung lingula, lung lung lung › azygos lobe
9 more anatomical sites map to this code.
Anatomical sites that code here: D02.21
2 anatomical sites in the table bronchus › middle lobe of lung lung › middle lobe
Anatomical sites that code here: D02.3
41 anatomical sites in the table antrum (Highmore) (maxillary) antrum (Highmore) (maxillary) › tympanicum auditory › canal (external) (skin) › internal auditory › tube auricular canal (external) › internal cartilage (articular) (joint) NEC › nose, nasal cavity › nasal cavity › tympanic concha › nose ear (external) › inner ear (external) › middle ethmoid (sinus)
29 more anatomical sites map to this code.
Anatomical sites that code here: D02.4
4 anatomical sites in the table respiratory respiratory › organs or system NEC respiratory › tract NEC respiratory › tract NEC › upper
Anatomical sites that code here: D04.0
2 anatomical sites in the table lip › skin (commissure) (lower) (upper) skin NOS › lip (lower) (upper)
Anatomical sites that code here: D04.1
8 anatomical sites in the table canthus (eye) (inner) (outer) lid (lower) (upper) meibomian gland palpebra skin NOS › canthus (eye) (inner) (outer) skin NOS › eyelid skin NOS › lid (lower) (upper) skin NOS › palpebra
Anatomical sites that code here: D04.2
29 anatomical sites in the table auditory auditory › canal (external) (skin) auricle, ear auricular canal (external) canal › auditory (external) canal › auricular (external) concha ear (external) ear (external) › auricle or auris ear (external) › canal, external ear (external) › external meatus ear (external) › lobule
17 more anatomical sites map to this code.
Anatomical sites that code here: D04.30
1 anatomical site in the table skin NOS › face NOS
Anatomical sites that code here: D04.39
26 anatomical sites in the table ala nasi (external) brow cheek › external chin columnella eyebrow face NEC forehead (skin) jaw › skin nasolabial groove nose, nasal › ala (external) (nasi) nose, nasal › external (skin)
14 more anatomical sites map to this code.
Anatomical sites that code here: D04.4
7 anatomical sites in the table head NEC scalp skin NOS › cervical region skin NOS › head NEC skin NOS › neck skin NOS › scalp skin NOS › supraclavicular region
Anatomical sites that code here: D04.5
39 anatomical sites in the table abdomen, abdominal › wall anus, anal › margin anus, anal › skin axilla, axillary › fold back NEC breast (connective tissue) (glandular tissue) (soft parts) › skin buttock NEC flank NEC gluteal region groin NEC infraclavicular (region) inguinal (region)
27 more anatomical sites map to this code.
Anatomical sites that code here: D04.6
23 anatomical sites in the table antecubital fossa or space arm NEC elbow NEC extremity › upper finger NEC forearm NEC hand NEC limb › upper nail › finger shoulder NEC skin NOS › antecubital space skin NOS › arm
11 more anatomical sites map to this code.
Anatomical sites that code here: D04.7
26 anatomical sites in the table ankle NEC calf extremity › lower foot NEC heel NEC hip NEC knee NEC leg NEC limb › lower nail › toe popliteal fossa or space skin NOS › ankle
14 more anatomical sites map to this code.
Anatomical sites that code here: D04.8
3 anatomical sites in the table extremity limb skin NOS › specified sites NEC
Anatomical sites that code here: D04.9
7 anatomical sites in the table connective tissue NEC › skin (dermis) NEC nail scar NEC skin NOS skin NOS › limb NEC sudoriferous, sudoriparous gland, site unspecified sweat gland (apocrine) (eccrine), site unspecified
Anatomical sites that code here: D06.0
11 anatomical sites in the table cervix (cervical) (uteri) (uterus) › canal cervix (cervical) (uteri) (uterus) › endocervix (canal) (gland) cervix (cervical) (uteri) (uterus) › internal os cervix (cervical) (uteri) (uterus) › nabothian gland endocervix (canal) (gland) follicle, nabothian internal › os (cervix) nabothian gland (follicle) os › internal uterus, uteri, uterine › endocervix (canal) (gland) uterus, uteri, uterine › internal os
Anatomical sites that code here: D06.1
8 anatomical sites in the table cervix (cervical) (uteri) (uterus) › exocervix cervix (cervical) (uteri) (uterus) › external os exocervix external › os, cervix uteri os os › external uterus, uteri, uterine › exocervix uterus, uteri, uterine › external os
Anatomical sites that code here: D06.7
5 anatomical sites in the table cervix (cervical) (uteri) (uterus) › squamocolumnar junction cervix (cervical) (uteri) (uterus) › stump junction › squamocolumnar, of cervix stump, cervical uterus, uteri, uterine › squamocolumnar junction
Anatomical sites that code here: D06.9
2 anatomical sites in the table cervix (cervical) (uteri) (uterus) uterus, uteri, uterine › cervix
Anatomical sites that code here: D07.0
18 anatomical sites in the table corpus › uteri corpus › uteri › isthmus endometrium (gland) (stroma) fetal membrane fundus › uterus isthmus uteri myometrium placenta stroma, endometrial uterus, uteri, uterine uterus, uteri, uterine › body uterus, uteri, uterine › cornu
6 more anatomical sites map to this code.
Anatomical sites that code here: D07.1
28 anatomical sites in the table Bartholin's gland clitoris fourchette labia (skin) labia (skin) › majora labia (skin) › minora labium (skin) labium (skin) › majus labium (skin) › minus mons mons › pubis mons › veneris
16 more anatomical sites map to this code.
Anatomical sites that code here: D07.2
4 anatomical sites in the table fornix › vagina Gartner's duct hymen vagina, vaginal (fornix) (vault) (wall)
Anatomical sites that code here: D07.30
12 anatomical sites in the table genital organ or tract genital organ or tract › female NEC genitourinary tract genitourinary tract › female septum › urethrovaginal septum › vesicovaginal urethrovaginal (septum) vaginovesical vaginovesical › septum vesicocervical tissue vesicovaginal vesicovaginal › septum
Anatomical sites that code here: D07.39
28 anatomical sites in the table adnexa (uterine) broad ligament corpus corpus › albicans fallopian tube (accessory) genital organ or tract › female NEC › specified site NEC ligament ligament › broad ligament › Mackenrodt's ligament › utero-ovarian Mackenrodt's ligament mesosalpinx
16 more anatomical sites map to this code.
Anatomical sites that code here: D07.4
14 anatomical sites in the table corpus › cavernosum corpus › penis foreskin glans penis penis penis › body penis › corpus (cavernosum) penis › glans penis › skin NEC prepuce skin NOS › male genital organs › penis skin NOS › male genital organs › prepuce
2 more anatomical sites map to this code.
Anatomical sites that code here: D07.5
1 anatomical site in the table prostate (gland)
Anatomical sites that code here: D07.60
3 anatomical sites in the table genital organ or tract › male NEC genitourinary tract › male skin NOS › male genital organs
Anatomical sites that code here: D07.61
3 anatomical sites in the table scrotum (skin) skin NOS › male genital organs › scrotum skin NOS › scrotum
Anatomical sites that code here: D07.69
18 anatomical sites in the table cord (true) (vocal) › spermatic ejaculatory duct epididymis genital organ or tract › male NEC › specified site NEC Mullerian duct › male seminal vesicle spermatic cord testis, testes testis, testes › descended testis, testes › ectopic testis, testes › retained testis, testes › scrotal
6 more anatomical sites map to this code.
Anatomical sites that code here: D09.0
17 anatomical sites in the table bladder (urinary) bladder (urinary) › dome bladder (urinary) › neck bladder (urinary) › orifice bladder (urinary) › orifice › ureteric bladder (urinary) › orifice › urethral bladder (urinary) › sphincter bladder (urinary) › trigone bladder (urinary) › urachus bladder (urinary) › wall bladder (urinary) › wall › anterior bladder (urinary) › wall › lateral
5 more anatomical sites map to this code.
Anatomical sites that code here: D09.10
1 anatomical site in the table urinary organ or system
Anatomical sites that code here: D09.19
22 anatomical sites in the table bulbourethral gland calyx, renal Cowper's gland junction › pelviureteric kidney (parenchymal) kidney (parenchymal) › calyx kidney (parenchymal) › hilus kidney (parenchymal) › pelvis paraurethral › gland parenchyma, kidney pelvis, pelvic › renal prostate (gland) › utricle
10 more anatomical sites map to this code.
Anatomical sites that code here: D09.2
29 anatomical sites in the table choroid ciliary body conjunctiva connective tissue NEC › orbit cornea (limbus) crystalline lens extraocular muscle eye NEC eyeball intraocular intraorbital iris
17 more anatomical sites map to this code.
Anatomical sites that code here: D09.3
32 anatomical sites in the table adrenal adrenal › capsule adrenal › cortex adrenal › gland adrenal › medulla cortex cortex › adrenal craniobuccal pouch craniopharyngeal (duct) (pouch) endocrine gland NEC endocrine gland NEC › pluriglandular fossa (of) › pituitary
20 more anatomical sites map to this code.
Anatomical sites that code here: D09.8
41 anatomical sites in the table abdomen, abdominal abdomen, abdominal › cavity abdomen, abdominal › organ abdomen, abdominal › viscera axilla, axillary cervical region cheek chest (wall) NEC extrarectal fossa (of) › ischiorectal intra-abdominal intrathoracic (cavity) (organs)
29 more anatomical sites map to this code.
Anatomical sites that code here: D09.9
1 anatomical site in the table unknown site or unspecified
