I81
BillablePortal vein thrombosis
Portal vein thrombosis
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Portal (vein) obstruction
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
- hepatic vein thrombosis (I82.0)
- phlebitis of portal vein (K75.1)
Also Known As / Clinical Terms
SNOMED CT
- Deep vein thrombosis of portal vein17920008
- PVT - Portal vein thrombosis17920008
- Portal vein thrombosis17920008
- Hepatic portal vein obstruction57348003
- Portal vein obstruction57348003
- AMI - Acute mesenteric ischaemia91489000
- AMI - Acute mesenteric ischemia91489000
- Acute intestinal ischaemia91489000
- Acute intestinal ischaemic syndrome91489000
- Acute intestinal ischemia91489000
- Acute intestinal ischemic syndrome91489000
- Acute intestinal vascular insufficiency91489000
- Acute mesenteric ischaemia91489000
- Acute mesenteric ischemia91489000
- Acute vascular insufficiency of intestine91489000
- Thrombosis of mesenteric vein95446005
- Acute GIT vascular insufficiency266519001
- Acute gastrointestinal tract vascular insufficiency266519001
- Acute mesenteric venous occlusion721663007
- Acute occlusion of mesenteric vein721663007
- Obstruction of visceral vein723877000
- Acute ischaemia of colon due to mesenteric vein thrombosis344015141000119100
- Acute ischaemia of colon due to thrombosis of mesenteric vein344015141000119100
- Acute ischemia of colon due to mesenteric vein thrombosis344015141000119100
- Acute ischemia of colon due to thrombosis of mesenteric vein344015141000119100
- Acute thrombosis of mesenteric vein133421000119101
- Acute visceral ischaemia16415501000119100
- Acute visceral ischemia16415501000119100
- Chronic thrombosis of mesenteric vein133411000119108
- Visceral ischaemia153821000119103
- Visceral ischemia153821000119103
UMLS
- Blood clot in portal veinC0155773
- Deep vein thrombosis of portal veinC0155773
- PVT - Portal vein thrombosisC0155773
- Portal Vein ThrombosisC0155773
- Portal vein thrombosisC0155773
- Portal vein thrombosis (disorder)C0155773
- PylethrombosisC0155773
- Thrombosis of the portal veinC0155773
- Thrombosis portal veinC0155773
- portal thrombosisC0155773
- portal thrombosis veinC0155773
- portal vein thrombosisC0155773
- pylethrombosisC0155773
- thrombosis portal veinC0155773
- Hepatic portal vein obstructionC0265029
- Portal (vein) obstructionC0265029
- Portal vein obstructionC0265029
- Portal vein obstruction (disorder)C0265029
- Portal vein occlusionC0265029
- portal obstructionC0265029
- portal vein obstructionC0265029
Frequently Asked Questions
What is ICD-10 code I81?
ICD-10-CM code I81 represents "Portal vein thrombosis". It is a billable/specific code that can be used on a claim.
Is I81 a billable code?
Yes, I81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I81 in?
I81 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What SNOMED CT codes does I81 map to?
I81 maps to 12 SNOMED CT concepts: 91489000, 266519001, 344015141000119100, 721663007, 133421000119101, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I81?
I81 is linked to 2 UMLS Concept Unique Identifiers: C0155773, C0265029. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.