Narrowing

Alphabetical Index

Use the alphabetical index for the main term narrowing to review the available sub terms and properly select the ICD-10 code with the highest degree of specificity. Instructional notations will guide the coder with information such as "see", "see also", "with", "without", "due to", and "code by site".

  • Narrowing - See Also: Stenosis;
    • artery - I77.1 Stricture of artery
      • auditory, internal - I65.8 Occlusion and stenosis of other precerebral arteries
      • 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 Malformation of coronary vessels
          • syphilitic - A50.54 Late congenital cardiovascular syphilis
        • due to syphilis NEC - A52.06 Other syphilitic heart involvement
      • 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;
    • eustachian tube - See: Obstruction, eustachian tube;
    • eyelid - See: Disorder, eyelid function;
    • larynx - J38.6 Stenosis of larynx
    • mesenteric artery - See Also: Ischemia, intestine, acute; - K55.059 Acute (reversible) ischemia of intestine, part and extent unspecified
    • palate - M26.89 Other dentofacial anomalies
    • palpebral fissure - See: Disorder, eyelid function;
    • ureter - N13.5 Crossing vessel and stricture of ureter without hydronephrosis
      • with infection - N13.6 Pyonephrosis
    • urethra - See: Stricture, urethra;

Clinical Terms

The following are some of the clinical term definitions related or applicable to narrowing within the ICD-10 index for Diseases and Injuries.

Arteries: The vessels carrying blood away from the heart.

Eustachian Tube: A narrow passageway that connects the upper part of the throat to the TYMPANIC CAVITY.

Eyelids: Each of the upper and lower folds of SKIN which cover the EYE when closed.

Larynx: A tubular organ of VOICE production. It is located in the anterior neck, superior to the TRACHEA and inferior to the tongue and HYOID BONE.

Mesenteric Arteries: Arteries which arise from the abdominal aorta and distribute to most of the intestines.

Palate: The structure that forms the roof of the mouth. It consists of the anterior hard palate (PALATE, HARD) and the posterior soft palate (PALATE, SOFT).

Ureter: One of a pair of thick-walled tubes that transports urine from the KIDNEY PELVIS to the URINARY BLADDER.

Urethra: A tube that transports URINE from the URINARY BLADDER to the outside of the body in both the sexes. It also has a reproductive function in the male by providing a passage for SPERM.