2026 ICD-10-CM Diagnosis Code T81.72XSComplication of vein following a procedure, not elsewhere classified, sequela
T81.72XS is a billable ICD-10-CM diagnosis code for complication of vein following a procedure, not elsewhere classified, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complication, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T81.72XS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired abnormality of pulmonary venous structure
- Acquired stenosis of pulmonary venous structure
- Acute deep vein thrombosis of bilateral lower limbs following procedure
- Acute deep vein thrombosis of bilateral upper limbs following procedure
- Acute deep vein thrombosis of left lower limb following procedure
- Acute deep vein thrombosis of left upper limb following procedure
- Acute deep vein thrombosis of right lower limb following procedure
- Acute deep vein thrombosis of right upper limb following procedure
- Acute deep venous thrombosis of bilateral legs
- Acute deep venous thrombosis of bilateral upper extremities
- Acute deep venous thrombosis of left upper extremity
- Acute deep venous thrombosis of lower extremity as complication of procedure
- Acute deep venous thrombosis of right upper extremity
- Acute deep venous thrombosis of upper extremity as complication of procedure
- Bilateral chronic deep vein thrombosis of upper limbs following procedure
- Chronic deep vein thrombosis of left upper limb following procedure
- Chronic deep vein thrombosis of right upper limb following procedure
- Chronic deep venous thrombosis of bilateral upper extremities
- Chronic deep venous thrombosis of left upper extremity
- Chronic deep venous thrombosis of right upper extremity
- Chronic deep venous thrombosis of upper extremity as complication of procedure
- Peripheral vascular complication of procedure
- Phlebitis due to procedure
- Phlebitis during procedure
- Postoperative stenosis of pulmonary vein
- Postprocedural obstructed systemic venous pathway
- Pulmonary vein stenosis
- Thromboembolism of vein
- Thromboembolus of vein following surgical procedure
- Thrombophlebitis due to procedure
- Thrombophlebitis during procedure
- Thrombosis of cerebral venous sinus due to and following surgical procedure
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Complications of procedures, not elsewhere classified (T81). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Pulmonary Vein Stenosis
obstruction of the pulmonary vein in one or multiple sites. the obstruction is the result of wall thickening and narrowing of the lumen of the vein.
Convert T81.72XS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T81.72XSOverview
Is T81.72XS a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report complication of vein following a procedure, not elsewhere classified, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T81.72XS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the complication of vein following a procedure, not elsewhere classified itself has resolved, not the original event.
What MS-DRG does T81.72XS group to?
When complication of vein following a procedure, not elsewhere classified, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T81.72XS exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for complication of vein following a procedure, not elsewhere classified, sequela on inpatient claims.
What is the ICD-9 equivalent of T81.72XS?
Under the General Equivalence Mappings, complication of vein following a procedure, not elsewhere classified, sequela converts to ICD-9-CM 909.3 (late eff surg/med compl). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
