2021 ICD-10-CM Diagnosis Code I82.91

Chronic embolism and thrombosis of unspecified vein

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • I82.91 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM I82.91 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of I82.91 - other international versions of ICD-10 I82.91 may differ.
The following code(s) above I82.91 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I82.91:
  • I00-I99
    2021 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • 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.-)
    Diseases of the circulatory system
  • I82
    ICD-10-CM Diagnosis Code I82

    Other venous embolism and thrombosis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code First
    • venous embolism and thrombosis complicating:
    • abortion, ectopic or molar pregnancy (O00-O07, O08.7)
    • pregnancy, childbirth and the puerperium (O22.-, O87.-)
    Type 2 Excludes
    • venous embolism and thrombosis (of):
    • cerebral (I63.6, I67.6)
    • coronary (I21-I25)
    • intracranial and intraspinal, septic or NOS (G08)
    • intracranial, nonpyogenic (I67.6)
    • intraspinal, nonpyogenic (G95.1)
    • mesenteric (K55.0-)
    • portal (I81)
    • pulmonary (I26.-)
    Other venous embolism and thrombosis
Approximate Synonyms
  • Chronic venous thrombosis
ICD-10-CM I82.91 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 299 Peripheral vascular disorders with mcc
  • 300 Peripheral vascular disorders with cc
  • 301 Peripheral vascular disorders without cc/mcc

Convert I82.91 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to I82.91:
  • Embolism (multiple) (paradoxical) I74.9
    ICD-10-CM Diagnosis Code I74.9

    Embolism and thrombosis of unspecified artery

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • vein (acute) I82.90
      ICD-10-CM Diagnosis Code I82.90

      Acute embolism and thrombosis of unspecified vein

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Embolism of vein NOS
      • Thrombosis (vein) NOS
      • chronic I82.91
  • Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) I82.90
    ICD-10-CM Diagnosis Code I82.90

    Acute embolism and thrombosis of unspecified vein

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Embolism of vein NOS
    • Thrombosis (vein) NOS
    • vein (acute) I82.90
      ICD-10-CM Diagnosis Code I82.90

      Acute embolism and thrombosis of unspecified vein

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Embolism of vein NOS
      • Thrombosis (vein) NOS
      • chronic I82.91
    • chronic I82.91

ICD-10-CM Codes Adjacent To I82.91
I82.81 Embolism and thrombosis of superficial veins of lower extremities
I82.811 Embolism and thrombosis of superficial veins of right lower extremity
I82.812 Embolism and thrombosis of superficial veins of left lower extremity
I82.813 …… bilateral
I82.819 Embolism and thrombosis of superficial veins of unspecified lower extremity
I82.89 Embolism and thrombosis of other specified veins
I82.890 Acute embolism and thrombosis of other specified veins
I82.891 Chronic embolism and thrombosis of other specified veins
I82.9 Embolism and thrombosis of unspecified vein
I82.90 Acute embolism and thrombosis of unspecified vein
I82.91 Chronic embolism and thrombosis of unspecified vein
I83 Varicose veins of lower extremities
I83.0 Varicose veins of lower extremities with ulcer
I83.00 Varicose veins of unspecified lower extremity with ulcer
I83.001 …… of thigh
I83.002 …… of calf
I83.003 …… of ankle
I83.004 …… of heel and midfoot
I83.005 …… other part of foot
I83.008 …… other part of lower leg
I83.009 …… of unspecified site

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.