ICD-10-CM Alphabetic Index · FY 2027 29 Entries
Narrowing in the ICD-10-CM Index ICD-10-CM
The main term Narrowing carries 29 index entries pointing to 12 ICD-10-CM codes. Every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027
29
Index Entries
12
Codes Referenced
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Default Code
N
Letter
29 of 29 shown
ICD-10-CM
Index Entries Under Narrowing 29 entries · 12 codes
Narrowing
artery I77.1
auditory, internal I65.8
basilar see Occlusion, artery, basilar
carotid see Occlusion, artery, carotid
cerebellar see Occlusion, artery, cerebellar
cerebral see Occlusion artery, cerebral
choroidal see Occlusion, artery, precerebral, specified NEC
communicating posterior see Occlusion, artery, precerebral, specified NEC
coronary see also Disease, heart, ischemic, atherosclerotic
congenital Q24.5
due to syphilis NEC A52.06
hypophyseal see Occlusion, artery, precerebral, specified NEC
pontine see Occlusion, artery, precerebral, specified NEC
precerebral see Occlusion, artery, precerebral
vertebral see Occlusion, artery, vertebral
auditory canal (external) see Stenosis, external ear canal
caudal septum, fixed, lower lateral cartilage, alar rim and nasal sill J34.8211
eustachian tube see Obstruction, eustachian tube
eyelid see Disorder, eyelid function
larynx J38.6
mesenteric artery K55.059 see also Ischemia, intestine, acute
nasal septum, head of the inferior turbinate and the upper lateral cartilage J34.8201
palate M26.89
palpebral fissure see Disorder, eyelid function
ureter N13.5
with infection N13.6
urethra see Stricture, urethra
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.
