ICD-10-CM Code I81
Portal vein thrombosis
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.I81 is a billable ICD code used to specify a diagnosis of portal vein thrombosis. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code I81 is used to code Thrombosis
Thrombosis (Greek: θρόμβωσις) is the formation of a blood clot (thrombus; Greek: θρόμβος) inside a blood vessel, obstructing the flow of blood through the circulatory system. When a blood vessel is injured, the body uses platelets (thrombocytes) and fibrin to form a blood clot to prevent blood loss. Even when a blood vessel is not injured, blood clots may form in the body under certain conditions. A clot that breaks free and begins to travel around the body is known as an embolus.
| Specialty: | Vascular Surgery |
| MeSH Codes: | D013927, D013927, D013927, D013927 |
| ICD 9 Codes: | 437.6, 453, 671.5, 671.9 |
Cyanosis of the lower right extremity, resulting from acute arterial thrombosis of the right leg (on the left side of the image)
Coding Notes for I81 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - Portal (vein) obstruction
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Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here." - Hepatic vein thrombosis - instead, use code I82.0
- Phlebitis of portal vein - instead, use code K75.1
MS-DRG Mapping
- DRG Group #441-443 - Disorders of liver except malig, cirr, alc hepa with MCC.
- DRG Group #441-443 - Disorders of liver except malig, cirr, alc hepa with CC.
- DRG Group #441-443 - Disorders of liver except malig, cirr, alc hepa without CC or MCC.
Related Concepts SNOMET-CT
- Acute thrombosis of mesenteric vein (disorder)
ICD-10-CM Alphabetical Index References for 'I81 - Portal vein thrombosis'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code I81. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 452 was previously used, I81 is the appropriate modern ICD10 code.