ICD-10 Code for Occlusion

The ICD-10-CM 2027 alphabetic index lists occlusion, occluded with the subterms below. More specific codes depend on the details documented, as listed in the official index (99 codes, 65 billable).

Index entries for Occlusion

anus – K62.4
- congenital – Q42.3
  - with fistula – Q42.2
aortoiliac (chronic) – I74.09
aqueduct of Sylvius – G91.1
- congenital – Q03.0
  - with spina bifida – see Spina bifida, by site, with hydrocephalus
artery – I70.9 (header) – see also Atherosclerosis, artery
- auditory, internal – I65.8
- basilar – I65.1
  - with
    - infarction – I63.22
      - due to
        embolism – I63.12
        thrombosis – I63.02
- brain or cerebral – I66.9
  - with infarction (due to) – I63.5- (header)
    - embolism – I63.4- (header)
    - thrombosis – I63.3- (header)
- carotid – I65.2- (header)
  - with
    - infarction – I63.23- (header)
      - due to
        embolism – I63.13- (header)
        thrombosis – I63.03- (header)
- cerebellar (anterior inferior) (posterior inferior) (superior) – I66.3
  - with infarction – I63.54- (header)
    - due to
      - embolism – I63.44- (header)
      - thrombosis – I63.34- (header)
- cerebral – I66.9
  - with infarction – I63.50
    - due to
      - embolism – I63.40
        specified NEC – I63.49
      - thrombosis – I63.30
        specified NEC – I63.39
  - anterior – I66.1- (header)
    - with infarction – I63.52- (header)
      - due to
        embolism – I63.42- (header)
        thrombosis – I63.32- (header)
  - middle – I66.0- (header)
    - with infarction – I63.51- (header)
      - due to
        embolism – I63.41- (header)
        thrombosis – I63.31- (header)
  - posterior – I66.2- (header)
    - with infarction – I63.53- (header)
      - due to
        embolism – I63.43- (header)
        thrombosis – I63.33- (header)
  - specified NEC – I66.8
    - with infarction – I63.59
      - due to
        embolism – I63.4- (header)
        thrombosis – I63.3- (header)
- choroidal (anterior) – see Occlusion, artery, precerebral, specified NEC
- communicating posterior – see Occlusion, artery, precerebral, specified NEC
- complete
  - coronary – I25.82
  - extremities – I70.92
- coronary (acute) (thrombotic) (without myocardial infarction) – I24.0
  - with myocardial infarction – see Infarction, myocardium
  - chronic total – I25.82
  - complete – I25.82
  - healed or old – I25.2
  - total (chronic) – I25.82
- hypophyseal – see Occlusion, artery, precerebral, specified NEC
- iliac – I74.5
- lower extremities due to stenosis or stricture – I77.1
- mesenteric (embolic) (thrombotic) – K55.069 – see also Infarct, intestine
- perforating – see Occlusion, artery, cerebral, specified NEC
- peripheral – I77.9
  - thrombotic or embolic – I74.4
- pontine – see Occlusion, artery, precerebral, specified NEC
- precerebral – I65.9
  - with infarction – I63.20
    - specified NEC – I63.29
    - due to
      - embolism – I63.10
        specified NEC – I63.19
      - thrombosis – I63.00
        specified NEC – I63.09
  - basilar – see Occlusion, artery, basilar
  - carotid – see Occlusion, artery, carotid
  - puerperal – O88.23
  - specified NEC – I65.8
    - with infarction – I63.29
      - due to
        embolism – I63.19
        thrombosis – I63.09
  - vertebral – see Occlusion, artery, vertebral
- renal – N28.0
- retinal
  - central – H34.1- (header)
  - partial – H34.21- (header)
  - branch – H34.23- (header)
  - transient – H34.0- (header)
- spinal – see Occlusion, artery, precerebral, vertebral
- total (chronic)
  - coronary – I25.82
  - extremities – I70.92
- vertebral – I65.0- (header)
  - with
    - infarction – I63.21- (header)
      - due to
        embolism – I63.11- (header)
        thrombosis – I63.01- (header)
basilar artery – see Occlusion, artery, basilar
bile duct (common) (hepatic) (noncalculous) – K83.1
bowel – see Obstruction, intestine
carotid (artery) (common) (internal) – see Occlusion, artery, carotid
centric (of teeth) – M26.59
- maximum intercuspation discrepancy – M26.55
cerebellar (artery) – see Occlusion, artery, cerebellar
cerebral (artery) – see Occlusion, artery, cerebral
cerebrovascular – see also Occlusion, artery, cerebral
- with infarction – I63.5- (header)
cervical canal – see Stricture, cervix
cervix (uteri) – see Stricture, cervix
choanal – Q30.0
choroidal (artery) – see Occlusion, artery, precerebral, specified NEC
colon – see Obstruction, intestine
communicating posterior artery – see Occlusion, artery, precerebral, specified NEC
coronary (artery) (vein) (thrombotic) – see also Infarct, myocardium
- chronic total – I25.82
- healed or old – I25.2
- not resulting in infarction – I24.0
- total (chronic) – I25.82
cystic duct – see Obstruction, gallbladder
embolic – see Embolism
fallopian tube – N97.1
- congenital – Q50.6
gallbladder – see also Obstruction, gallbladder
- congenital (causing jaundice) – Q44.1
gingiva, traumatic – K06.2
hymen – N89.6
- congenital – Q52.3
hypophyseal (artery) – see Occlusion, artery, precerebral, specified NEC
iliac artery – I74.5
intestine – see Obstruction, intestine
lacrimal passages – see Obstruction, lacrimal
lung – J98.4
lymph or lymphatic channel – I89.0
mammary duct – N64.89
mesenteric artery (embolic) (thrombotic) – K55.069 – see also Infarct, intestine
nose – J34.89
- congenital – Q30.0
organ or site, congenital NEC – see Atresia, by site
oviduct – N97.1
- congenital – Q50.6
peripheral arteries
- due to stricture or stenosis – I77.1
- upper extremity – I74.2
pontine (artery) – see Occlusion, artery, precerebral, specified NEC
posterior lingual, of mandibular teeth – M26.29
precerebral artery – see Occlusion, artery, precerebral
punctum lacrimale – see Obstruction, lacrimal
pupil – see Membrane, pupillary
pylorus, adult – K31.1 – see also Stricture, pylorus
renal artery – N28.0
retina, retinal
- artery – see Occlusion, artery, retinal
- vein (central) – H34.81- (header)
  - engorgement – H34.82- (header)
  - tributary – H34.83- (header)
- vessels – H34.9
spinal artery – see Occlusion, artery, precerebral, vertebral
teeth (mandibular) (posterior lingual) – M26.29
thoracic duct – I89.0
thrombotic – see Thrombosis, artery
traumatic
- edentulous (alveolar) – K06.2
- gingiva – K06.2
- periodontal – K05.5
tubal – N97.1
ureter (complete) (partial) – N13.5
- congenital – Q62.10
ureteropelvic junction – N13.5
- congenital – Q62.11
ureterovesical orifice – N13.5
- congenital – Q62.12
urethra – see Stricture, urethra
uterus – N85.8
vagina – N89.5
vascular NEC – I99.8
vein – see Thrombosis
- retinal – see Occlusion, retinal, vein
vena cava (inferior) (superior) – see Embolism, vena cava
ventricle (brain) – G91.1
vertebral (artery) – see Occlusion, artery, vertebral
vessel (blood) – I99.8
vulva – N90.5

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.