451.9 THROMBOPHLEBITIS NOS

Home > ICD-9 List > Diseases of the circulatory system > Diseases of veins and lymphatics, and other diseases of circulatory system (451-459) > 451 Phlebitis and thrombophlebitis > 451.9

Code Information

Diagnosis Code: 451.9

Short Description: Thrombophlebitis NOS

Long Description: Phlebitis and thrombophlebitis of unspecified site

Code Classification:

Diseases of the circulatory system (390–459)
- Diseases of veins and lymphatics, and other diseases of circulatory system (451-459)
  - 451 Phlebitis and thrombophlebitis
    - 451.9 Thrombophlebitis NOS

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 451.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

Endophlebitis (see also Phlebitis) 451.9
- leg 451.2
  - deep (vessels) 451.19
  - superficial (vessels) 451.0
- portal (vein) 572.1
- retina 362.18
- specified site NEC 451.89
- syphilitic 093.89

Gout, gouty 274.9
- phlebitis 274.89 [451.9]

Inflammation, inflamed, inflammatory (with exudation)
- vein (see also Phlebitis) 451.9
  - thrombotic 451.9
    - cerebral (see also Thrombosis, brain) 434.0
    - leg 451.2
      - deep (vessels) NEC 451.19
      - superficial (vessels) 451.0
    - lower extremity 451.2
      - deep (vessels) NEC 451.19
      - superficial (vessels) 451.0

Periphlebitis (see also Phlebitis) 451.9
- lower extremity 451.2
  - deep (vessels) 451.19
  - superficial (vessels) 451.0
- portal 572.1
- retina 362.18
- superficial (vessels) 451.0
- tuberculous (see also Tuberculosis) 017.9
  - retina 017.3 [362.18]

Phlebitis (infective) (pyemic) (septic) (suppurative) 451.9
- antecubital vein 451.82
- arm NEC 451.84
  - axillary vein 451.89
  - basilic vein 451.82
  - deep 451.83
  - superficial 451.82
- axillary vein 451.89
- basilic vein 451.82
- blue 451.9
- brachial vein 451.83
- breast, superficial 451.89
- cavernous (venous) sinus - see Phlebitis, intracranial sinus
- cephalic vein 451.82
- cerebral (venous) sinus - see Phlebitis, intracranial sinus
- chest wall, superficial 451.89
- complicating pregnancy or puerperium 671.2
  - affecting fetus or newborn 760.3
- cranial (venous) sinus - see Phlebitis, intracranial sinus
- deep (vessels) 451.19
  - femoral vein 451.11
  - specified vessel NEC 451.19
- due to implanted device - see Complications, due to (presence of) any device, implant, or graft classified to 996.0-996.5 NEC
- during or resulting from a procedure 997.2
- femoral vein (deep) (superficial) 451.11
- femoropopliteal 451.19
- following infusion, perfusion, or transfusion 999.2
- gouty 274.89 [451.9]
- hepatic veins 451.89
- iliac vein 451.81
- iliofemoral 451.11
- intracranial sinus (any) (venous) 325
  - late effect - see category 326
  - nonpyogenic 437.6
    - in pregnancy or puerperium 671.5
- jugular vein 451.89
- lateral (venous) sinus - see Phlebitis, intracranial sinus
- leg 451.2
  - deep (vessels) 451.19
    - specified vessel NEC 451.19
  - superficial (vessels) 451.0
    - femoral vein 451.11
- longitudinal sinus - see Phlebitis, intracranial sinus
- lower extremity 451.2
  - deep (vessels) 451.19
    - specified vessel NEC 451.19
  - superficial (vessels) 451.0
    - femoral vein 451.11
- migrans, migrating (superficial) 453.1
- pelvic
  - with
    - abortion - see Abortion, by type, with sepsis
    - ectopic pregnancy (see also categories 633.0-633.9) 639.0
    - molar pregnancy (see also categories 630-632) 639.0
  - following
    - abortion 639.0
    - ectopic or molar pregnancy 639.0
  - puerperal, postpartum 671.4
- popliteal vein 451.19
- portal (vein) 572.1
- postoperative 997.2
- pregnancy 671.2
  - deep 671.3
  - specified type NEC 671.5
    - superficial 671.2
- puerperal, postpartum, childbirth 671.2
  - deep 671.4
  - lower extremities 671.2
  - pelvis 671.4
  - specified site NEC 671.5
    - superficial 671.2
- radial vein 451.83
- retina 362.18
- saphenous (great) (long) 451.0
  - accessory or small 451.0
- sinus (meninges) - see Phlebitis, intracranial sinus
- specified site NEC 451.89
- subclavian vein 451.89
- syphilitic 093.89
- tibial vein 451.19
- ulcer, ulcerative 451.9
  - leg 451.2
    - deep (vessels) 451.19
      - specified vessel NEC 451.19
    - superficial (vessels) 451.0
      - femoral vein 451.11
  - lower extremity 451.2
    - deep (vessels) 451.19
      - femoral vein 451.11
      - specified vessel NEC 451.19
    - superficial (vessels) 451.0
- ulnar vein 451.83
- umbilicus 451.89
- upper extremity - see Phlebitis, arm
  - deep (veins) 451.83
    - brachial vein 451.83
    - radial vein 451.83
    - ulnar vein 451.83
  - superficial (veins) 451.82
    - antecubital vein 451.82
    - basilic vein 451.82
    - cephalic vein 451.82
- uterus (septic) (see also Endometritis) 615.9
- varicose (leg) (lower extremity) (see also Varicose, vein) 454.1

Thrombophlebitis 451.9
- antecubital vein 451.82
- antepartum (superficial) 671.2
  - affecting fetus or newborn 760.3
  - deep 671.3
- arm 451.89
  - deep 451.83
  - superficial 451.82
- breast, superficial 451.89
- cavernous (venous) sinus - see Thrombophlebitis, intracranial venous sinus
- cephalic vein 451.82
- cerebral (sinus) (vein) 325
  - late effect - see category 326
  - nonpyogenic 437.6
    - in pregnancy or puerperium 671.5
    - late effect - see Late effect(s) (of) cerebrovascular disease
- due to implanted device - see Complications, due to (presence of) any device, implant, or graft classified to 996.0-996.5 NEC
- during or resulting from a procedure NEC 997.2
- femoral 451.11
- femoropopliteal 451.19
- following infusion, perfusion, or transfusion 999.2
- hepatic (vein) 451.89
- idiopathic, recurrent 453.1
- iliac vein 451.81
- iliofemoral 451.11
- intracranial venous sinus (any) 325
  - late effect - see category 326
  - nonpyogenic 437.6
    - in pregnancy or puerperium 671.5
    - late effect - see Late effect(s) (of) cerebrovascular disease
- jugular vein 451.89
- lateral (venous) sinus - see Thrombophlebitis, intracranial venous sinus
- leg 451.2
  - deep (vessels) 451.19
    - femoral vein 451.11
    - specified vessel NEC 451.19
  - superficial (vessels) 451.0
    - femoral vein 451.11
- longitudinal (venous) sinus - see Thrombophlebitis, intracranial venous sinus
- lower extremity 451.2
  - deep (vessels) 451.19
    - femoral vein 451.11
    - specified vessel NEC 451.19
  - superficial (vessels) 451.0
- migrans, migrating 453.1
- pelvic
  - with
    - abortion - see Abortion, by type, with sepsis
    - ectopic pregnancy (see also categories 633.0-633.9) 639.0
    - molar pregnancy (see also categories 630-632) 639.0
  - following
    - abortion 639.0
    - ectopic or molar pregnancy 639.0
  - puerperal 671.4
- popliteal vein 451.19
- portal (vein) 572.1
- postoperative 997.2
- pregnancy (superficial) 671.2
  - affecting fetus or newborn 760.3
  - deep 671.3
- puerperal, postpartum, childbirth (extremities) (superficial) 671.2
  - deep 671.4
  - pelvic 671.4
  - septic 670.3
  - specified site NEC 671.5
- radial vein 451.82
- saphenous (greater) (lesser) 451.0
- sinus (intracranial) - see Thrombophlebitis, intracranial venous sinus
- specified site NEC 451.89
- tibial vein 451.19

Crosswalk Information

The code 451.9 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
451.9		I80.9	Phlebitis and thrombophlebitis of unspecified site

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
451.0	Phlebitis and thrombophlebitis of superficial vessels of lower extremities
451.11	Phlebitis and thrombophlebitis of femoral vein (deep) (superficial)
451.19	Phlebitis and thrombophlebitis of deep veins of lower extremities, other
451.2	Phlebitis and thrombophlebitis of lower extremities, unspecified
451.81	Phlebitis and thrombophlebitis of iliac vein
451.82	Phlebitis and thrombophlebitis of superficial veins of upper extremities
451.83	Phlebitis and thrombophlebitis of deep veins of upper extremities
451.84	Phlebitis and thrombophlebitis of upper extremities, unspecified
451.89	Phlebitis and thrombophlebitis of other sites

This page was last updated on: 10/1/2014

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