ICD-10 Code for Infarct

The ICD-10-CM 2027 alphabetic index lists infarct, infarction with the subterms below. More specific codes depend on the details documented, as listed in the official index (76 codes, 61 billable).

Index entries for Infarct

adrenal (capsule) (gland) – E27.49
appendices epiploicae – K55.069 – see also Infarct, intestine
bowel – K55.069 – see also Infarct, intestine
brain (stem) – see Infarct, cerebral
breast – N64.89
brewer's (kidney) – N28.0
cardiac – see Infarct, myocardium
cerebellar – see Infarct, cerebral
cerebral (acute) – I63.9- – see also Occlusion, artery cerebral or precerebral, with infarction
- aborted – I63.9
- chronic (imaging) (old) (remote) (without sequelae) – Z86.73
  - with residual defects – see Sequelae, disease, cerebrovascular
- cortical – I63.9
- due to
  - cerebral venous thrombosis, nonpyogenic – I63.6
  - embolism
    - cerebral arteries – I63.4- (header)
    - precerebral arteries – I63.1- (header)
  - occlusion NEC
    - cerebral arteries – I63.5- (header)
    - precerebral arteries – I63.2- (header)
    - small artery – I63.81
  - stenosis NEC
    - cerebral arteries – I63.5- (header)
    - precerebral arteries – I63.2- (header)
    - small artery – I63.81
  - thrombosis
    - cerebral artery – I63.3- (header)
    - precerebral artery – I63.0- (header)
- intraoperative
  - during cardiac surgery – I97.810
  - during other surgery – I97.811
- neonatal – P91.82- (header)
- perinatal (arterial ischemic) – P91.82- (header)
- postprocedural
  - following cardiac surgery – I97.820
  - following other surgery – I97.821
- specified NEC – I63.89
colon (acute) (agnogenic) (embolic) (hemorrhagic) (nonocclusive) (nonthrombotic) (occlusive) (segmental) (thrombotic) (with gangrene) – K55.049 – see also Infarct, intestine
coronary artery – see Infarct, myocardium
embolic – see Embolism
fallopian tube – N83.8
gallbladder – K82.8
heart – see Infarct, myocardium
hepatic – K76.3
hypophysis (anterior lobe) – E23.6
impending (myocardium) – I20.0
intestine (acute) (agnogenic) (embolic) (hemorrhagic) (nonocclusive) (nonthrombotic) (occlusive) (thrombotic) (with gangrene) – K55.069
- diffuse – K55.062
- focal – K55.061
- large – K55.049
  - diffuse – K55.042
  - focal – K55.041
- small – K55.029
  - diffuse – K55.022
  - focal – K55.021
kidney – N28.0
lacunar – I63.81
liver – K76.3
lung (embolic) (thrombotic) – see Embolism, pulmonary
lymph node – I89.8
mesentery, mesenteric (embolic) (thrombotic) (with gangrene) – K55.069 – see also Infarct, intestine
muscle (ischemic) – M62.20
- ankle – M62.27- (header)
- foot – M62.27- (header)
- forearm – M62.23- (header)
- hand – M62.24- (header)
- lower leg – M62.26- (header)
- pelvic region – M62.25- (header)
- shoulder region – M62.21- (header)
- specified site NEC – M62.28
- thigh – M62.25- (header)
- upper arm – M62.22- (header)
myocardium, myocardial (acute) (with stated duration of 4 weeks or less) – I21.9
- with
  - coronary microvascular disease – I21.B
  - coronary microvascular dysfunction – I21.B
  - nonobstructive coronary arteries [MINOCA] with microvascular disease – I21.B
- associated with revascularization procedure – I21.A9
- diagnosed on ECG, but presenting no symptoms – I25.2
- due to
  - demand ischemia – I21.A1
  - ischemic imbalance – I21.A1
- healed or old – I25.2
- intraoperative – see also Infarct, myocardium, associated with revascularization procedure
  - during cardiac surgery – I97.790
  - during other surgery – I97.791
- non-Q wave – I21.4
- non-ST elevation (NSTEMI) – I21.4
  - subsequent – I22.2
- nontransmural – I21.4
- past (diagnosed on ECG or other investigation, but currently presenting no symptoms) – I25.2
- postprocedural – see also Infarct, myocardium, associated with revascularization procedure
  - following cardiac surgery – I97.190 – see also Infarct, myocardium, type 4 or type 5
  - following other surgery – I97.191
- Q wave (see also, Infarct, myocardium, ST elevation, by site) – I21.3
- secondary to
  - demand ischemia – I21.A1
  - ischemic imbalance – I21.A1
- ST elevation (STEMI) – I21.3
  - anterior (anteroapical) (anterolateral) (anteroseptal) (Q wave) (wall) – I21.09
    - subsequent – I22.0
  - inferior (diaphragmatic) (inferolateral) (inferoposterior) (wall) – I21.19
    - subsequent – I22.1
  - inferoposterior transmural (Q wave) – I21.11
  - involving
    - coronary artery of anterior wall NEC – I21.09
    - coronary artery of inferior wall NEC – I21.19
    - diagonal coronary artery – I21.02
    - left anterior descending coronary artery – I21.02
    - left circumflex coronary artery – I21.21
    - left main coronary artery – I21.01
    - oblique marginal coronary artery – I21.21
    - right coronary artery – I21.11
  - lateral (apical-lateral) (basal-lateral) (high) – I21.29
    - subsequent – I22.8
  - posterior (posterobasal) (posterolateral) (posteroseptal) (true) – I21.29
    - subsequent – I22.8
  - septal – I21.29
    - subsequent – I22.8
  - specified NEC – I21.29
    - subsequent – I22.8
  - subsequent – I22.9
- subsequent (recurrent) (reinfarction) – I22.9
  - anterior (anteroapical) (anterolateral) (anteroseptal) (wall) – I22.0
  - diaphragmatic (wall) – I22.1
  - inferior (diaphragmatic) (inferolateral) (inferoposterior) (wall) – I22.1
  - lateral (apical-lateral) (basal-lateral) (high) – I22.8
  - non-ST elevation (NSTEMI) – I22.2
  - posterior (posterobasal) (posterolateral) (posteroseptal) (true) – I22.8
  - septal – I22.8
  - specified NEC – I22.8
  - ST elevation – I22.9
    - anterior (anteroapical) (anterolateral) (anteroseptal) (wall) – I22.0
    - inferior (diaphragmatic) (inferolateral) (inferoposterior) (wall) – I22.1
    - specified NEC – I22.8
  - subendocardial – I22.2
  - transmural – I22.9
    - anterior (anteroapical) (anterolateral) (anteroseptal) (wall) – I22.0
    - diaphragmatic (wall) – I22.1
    - inferior (diaphragmatic) (inferolateral) (inferoposterior) (wall) – I22.1
    - lateral (apical-lateral) (basal-lateral) (high) – I22.8
    - posterior (posterobasal) (posterolateral) (posteroseptal) (true) – I22.8
    - specified NEC – I22.8
  - type 1 – I22.9 – see also Infarction, myocardial, subsequent, by site, or by ST elevation or non-ST elevation
  - type 2 – I21.A1
  - type 3 – I21.A9
  - type 4 – I21.A9
  - type 5 – I21.A9
- syphilitic – A52.06
- transmural (see also, Infarct, myocardium, ST elevation, by site) – I21.3
  - anterior (anteroapical) (anterolateral) (anteroseptal) (Q wave) (wall) – I21.09
  - inferior (diaphragmatic) (inferolateral) (inferoposterior) (Q wave) (wall) – I21.19
  - inferoposterior (Q wave) – I21.11
  - lateral (apical-lateral) (basal-lateral) (high) – I21.29
  - posterior (posterobasal) (posterolateral) (posteroseptal) (true) – I21.29
  - septal NEC – I21.29
  - specified NEC – I21.29
- type 1 – I21.9 – see also Infarction, myocardial, by site, or by ST elevation or non-ST elevation
- type 2 – I21.A1
- type 3 – I21.A9
- type 4 (a) (b) (c) – I21.A9
- type 5 – I21.A9
nontransmural – I21.4
omentum – K55.069 – see also Infarct, intestine
ovary – N83.8
pancreas – K86.89
papillary muscle – see Infarct, myocardium
parathyroid gland – E21.4
pituitary (gland) – E23.6
placenta – O43.81- (header)
prostate – N42.89
pulmonary (artery) (vein) (hemorrhagic) – see Embolism, pulmonary
renal (embolic) (thrombotic) – N28.0
retina, retinal (artery) – see Occlusion, artery, retina
spinal (cord) (acute) (embolic) (nonembolic) – G95.11
spleen – D73.5
- embolic or thrombotic – I74.8
subendocardial (acute) (nontransmural) – I21.4
suprarenal (capsule) (gland) – E27.49
testis – N50.1
thrombotic – see also Thrombosis
- artery, arterial – see Embolism
thyroid (gland) – E07.89
ventricle (heart) – see Infarct, myocardium

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.