2021

  1. ICD-10-CM Codes
    2. ›
  2. I00-I99 Diseases of the circulatory system
    3. ›
  3. I70-I79 Diseases of arteries, arterioles and capillaries
    4. ›
  4. I70- Atherosclerosis
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code I70.261

2021 ICD-10-CM Diagnosis Code I70.261

Atherosclerosis of native arteries of extremities with gangrene, right leg

    2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
  • I70.261 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Athscl native arteries of extremities w gangrene, right leg
  • The 2021 edition of ICD-10-CM I70.261 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of I70.261 - other international versions of ICD-10 I70.261 may differ.
ICD-10-CM Coding Rules
  • I70.261 is applicable to adult patients aged 15 - 124 years inclusive.
The following code(s) above I70.261 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 I70.261:
  • 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
  • I70
    ICD-10-CM Diagnosis Code I70

    Atherosclerosis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • arteriolosclerosis
    • arterial degeneration
    • arteriosclerosis
    • arteriosclerotic vascular disease
    • arteriovascular degeneration
    • atheroma
    • endarteritis deformans or obliterans
    • senile arteritis
    • senile endarteritis
    • vascular degeneration
    Type 2 Excludes
    • arteriosclerotic cardiovascular disease (I25.1-)
    • arteriosclerotic heart disease (I25.1-)
    • atheroembolism (I75.-)
    • cerebral atherosclerosis (I67.2)
    • coronary atherosclerosis (I25.1-)
    • mesenteric atherosclerosis (K55.1)
    • precerebral atherosclerosis (I67.2)
    • primary pulmonary atherosclerosis (I27.0)
    Use Additional
    • code to identify:
    • exposure to environmental tobacco smoke (Z77.22)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)
    Atherosclerosis
  • I70.2
    ICD-10-CM Diagnosis Code I70.2

    Atherosclerosis of native arteries of the extremities

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Mönckeberg's (medial) sclerosis
    Type 2 Excludes
    Use Additional
    • code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)
    Atherosclerosis of native arteries of the extremities
  • I70.26
    ICD-10-CM Diagnosis Code I70.26

    Atherosclerosis of native arteries of extremities with gangrene

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • any condition classifiable to I70.21-, I70.22-, I70.23-, I70.24-, and I70.25-
    • chronic limb-threatening ischemia of native arteries of extremities with gangrene
    • critical limb ischemia of native arteries of extremities with gangrene
    Use Additional
    • code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
    Atherosclerosis of native arteries of extremities with gangrene
Approximate Synonyms
  • Atherosclerosis of right leg native artery with gangrene
  • Gangrene of right lower limb due to atherosclerosis
ICD-10-CM I70.261 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
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert I70.261 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 I70.261:
  • Arteriosclerosis, arteriosclerotic (diffuse) (obliterans) (of) (senile) (with calcification) I70.90
    ICD-10-CM Diagnosis Code I70.90

    Unspecified atherosclerosis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
    • with
      • critical limb ischemia
        • leg I70.229
          ICD-10-CM Diagnosis Code I70.229

          Atherosclerosis of native arteries of extremities with rest pain, unspecified extremity

            2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
          • right I70.221
            ICD-10-CM Diagnosis Code I70.221

            Atherosclerosis of native arteries of extremities with rest pain, right leg

              2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
            • with
              • gangrene I70.261 (and intermittent claudication, rest pain, and ulcer)
    • extremities (native arteries) I70.209
      ICD-10-CM Diagnosis Code I70.209

      Unspecified atherosclerosis of native arteries of extremities, unspecified extremity

        2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
      • leg I70.209
        ICD-10-CM Diagnosis Code I70.209

        Unspecified atherosclerosis of native arteries of extremities, unspecified extremity

          2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
        • right I70.201
          ICD-10-CM Diagnosis Code I70.201

          Unspecified atherosclerosis of native arteries of extremities, right leg

            2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
          • with
            • gangrene I70.261 (and intermittent claudication, rest pain and ulcer)

ICD-10-CM Codes Adjacent To I70.261
I70.24 Atherosclerosis of native arteries of left leg with ulceration
I70.241 …… of thigh
I70.242 …… of calf
I70.243 …… of ankle
I70.244 …… of heel and midfoot
I70.245 …… of other part of foot
I70.248 …… of other part of lower leg
I70.249 …… of unspecified site
I70.25 Atherosclerosis of native arteries of other extremities with ulceration
I70.26 Atherosclerosis of native arteries of extremities with gangrene
I70.261 …… right leg
I70.262 …… left leg
I70.263 …… bilateral legs
I70.268 …… other extremity
I70.269 …… unspecified extremity
I70.29 Other atherosclerosis of native arteries of extremities
I70.291 …… right leg
I70.292 …… left leg
I70.293 …… bilateral legs
I70.298 …… other extremity
I70.299 …… unspecified extremity

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

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