ICD↔CPT crosswalk
CPT 37718: ICD-10 codes that support medical necessity
These ICD-10-CM diagnoses support medical necessity for CPT 37718 under Medicare coverage policies (LCDs, NCDs, and Billing & Coding articles). Billing CPT 37718 with a diagnosis that isn't covered typically denies as CARC 50 — not medically necessary.
National approximation. Coverage varies by MAC and state — confirm against the specific LCD/NCD and article that applies to your jurisdiction and date of service.
| ICD-10 | Description |
|---|---|
| D69.8 | Other specified hemorrhagic conditions |
| I78.0 | Hereditary hemorrhagic telangiectasia |
| I78.8 | Other diseases of capillaries |
| I80.01 | Phlebitis and thrombophlebitis of superficial vessels of right lower extremity |
| I80.02 | Phlebitis and thrombophlebitis of superficial vessels of left lower extremity |
| I80.03 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities, bilateral |
| I80.3 | Phlebitis and thrombophlebitis of lower extremities, unspecified |
| I83.001 | Varicose veins of unspecified lower extremity with ulcer of thigh |
| I83.002 | Varicose veins of unspecified lower extremity with ulcer of calf |
| I83.003 | Varicose veins of unspecified lower extremity with ulcer of ankle |
| I83.004 | Varicose veins of unspecified lower extremity with ulcer of heel and midfoot |
| I83.005 | Varicose veins of unspecified lower extremity with ulcer other part of foot |
| I83.011 | Varicose veins of right lower extremity with ulcer of thigh |
| I83.012 | Varicose veins of right lower extremity with ulcer of calf |
| I83.013 | Varicose veins of right lower extremity with ulcer of ankle |
| I83.014 | Varicose veins of right lower extremity with ulcer of heel and midfoot |
| I83.015 | Varicose veins of right lower extremity with ulcer other part of foot |
| I83.018 | Varicose veins of right lower extremity with ulcer other part of lower leg |
| I83.021 | Varicose veins of left lower extremity with ulcer of thigh |
| I83.022 | Varicose veins of left lower extremity with ulcer of calf |
| I83.023 | Varicose veins of left lower extremity with ulcer of ankle |
| I83.024 | Varicose veins of left lower extremity with ulcer of heel and midfoot |
| I83.025 | Varicose veins of left lower extremity with ulcer other part of foot |
| I83.028 | Varicose veins of left lower extremity with ulcer other part of lower leg |
| I83.11 | Varicose veins of right lower extremity with inflammation |
| I83.12 | Varicose veins of left lower extremity with inflammation |
| I83.211 | Varicose veins of right lower extremity with both ulcer of thigh and inflammation |
| I83.212 | Varicose veins of right lower extremity with both ulcer of calf and inflammation |
| I83.213 | Varicose veins of right lower extremity with both ulcer of ankle and inflammation |
| I83.214 | Varicose veins of right lower extremity with both ulcer of heel and midfoot and inflammation |
| I83.215 | Varicose veins of right lower extremity with both ulcer other part of foot and inflammation |
| I83.218 | Varicose veins of right lower extremity with both ulcer of other part of lower extremity and inflammation |
| I83.221 | Varicose veins of left lower extremity with both ulcer of thigh and inflammation |
| I83.222 | Varicose veins of left lower extremity with both ulcer of calf and inflammation |
| I83.223 | Varicose veins of left lower extremity with both ulcer of ankle and inflammation |
| I83.224 | Varicose veins of left lower extremity with both ulcer of heel and midfoot and inflammation |
| I83.225 | Varicose veins of left lower extremity with both ulcer other part of foot and inflammation |
| I83.228 | Varicose veins of left lower extremity with both ulcer of other part of lower extremity and inflammation |
| I83.811 | Varicose veins of right lower extremity with pain |
| I83.812 | Varicose veins of left lower extremity with pain |
| I83.813 | Varicose veins of bilateral lower extremities with pain |
| I83.891 | Varicose veins of right lower extremity with other complications |
| I83.892 | Varicose veins of left lower extremity with other complications |
| I83.893 | Varicose veins of bilateral lower extremities with other complications |
| I87.001 | Postthrombotic syndrome without complications of right lower extremity |
| I87.002 | Postthrombotic syndrome without complications of left lower extremity |
| I87.003 | Postthrombotic syndrome without complications of bilateral lower extremity |
| I87.011 | Postthrombotic syndrome with ulcer of right lower extremity |
| I87.012 | Postthrombotic syndrome with ulcer of left lower extremity |
| I87.013 | Postthrombotic syndrome with ulcer of bilateral lower extremity |
| I87.021 | Postthrombotic syndrome with inflammation of right lower extremity |
| I87.022 | Postthrombotic syndrome with inflammation of left lower extremity |
| I87.023 | Postthrombotic syndrome with inflammation of bilateral lower extremity |
| I87.031 | Postthrombotic syndrome with ulcer and inflammation of right lower extremity |
| I87.032 | Postthrombotic syndrome with ulcer and inflammation of left lower extremity |
| I87.033 | Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremity |
| I87.091 | Postthrombotic syndrome with other complications of right lower extremity |
| I87.092 | Postthrombotic syndrome with other complications of left lower extremity |
| I87.093 | Postthrombotic syndrome with other complications of bilateral lower extremity |
| I87.2 | Venous insufficiency (chronic) (peripheral) |
| I87.301 | Chronic venous hypertension (idiopathic) without complications of right lower extremity |
| I87.302 | Chronic venous hypertension (idiopathic) without complications of left lower extremity |
| I87.303 | Chronic venous hypertension (idiopathic) without complications of bilateral lower extremity |
| I87.311 | Chronic venous hypertension (idiopathic) with ulcer of right lower extremity |
| I87.312 | Chronic venous hypertension (idiopathic) with ulcer of left lower extremity |
| I87.313 | Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity |
| I87.321 | Chronic venous hypertension (idiopathic) with inflammation of right lower extremity |
| I87.322 | Chronic venous hypertension (idiopathic) with inflammation of left lower extremity |
| I87.323 | Chronic venous hypertension (idiopathic) with inflammation of bilateral lower extremity |
| I87.331 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of right lower extremity |
| I87.332 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of left lower extremity |
| I87.333 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity |
| I87.391 | Chronic venous hypertension (idiopathic) with other complications of right lower extremity |
| I87.392 | Chronic venous hypertension (idiopathic) with other complications of left lower extremity |
| I87.393 | Chronic venous hypertension (idiopathic) with other complications of bilateral lower extremity |
| I87.8 | Other specified disorders of veins |
| Q27.8 | Other specified congenital malformations of peripheral vascular system |
| R58 | Hemorrhage, not elsewhere classified |
Frequently asked questions
Which ICD-10 codes support medical necessity for CPT 37718?
Medicare coverage policies (LCDs/NCDs and Billing & Coding articles) list 78 ICD-10 diagnosis codes that support medical necessity for CPT 37718. The covered codes are listed on this page. Coverage varies by MAC/state — always confirm against the policy that applies to you.
What is a medical-necessity (LCD/NCD) crosswalk?
A claim whose procedure isn't supported by a covered diagnosis denies as "not medically necessary" (CARC 50). CMS coverage policies define which diagnoses justify a procedure; this page is the ICD-10 → CPT 37718 view of that relationship.
Catch medical-necessity denials before you bill. CareNiva scrubs claims against LCD/NCD coverage and flags unsupported diagnoses — in the same platform you run visits and billing.
More free billing tools: all crosswalks · NCCI edits · Medicare fees · denial codes
Informational only, not coding, billing, or legal advice. Based on CMS Medicare Coverage Database data; verify the current LCD/NCD for your MAC before billing.
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