Free Tool
ICD-10-CM Code Lookup
Search 70,000+ ICD-10-CM diagnosis codes instantly. Type a keyword (e.g. diabetes) or a code (e.g. E11) to get started.
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| Code | Description | Billable | Category |
|---|---|---|---|
| I87302 | Chronic venous hypertension w/o comp of l low extrem | ✔ Yes | Circulatory System |
| I87303 | Chronic venous hypertension w/o comp of bilateral low extrm | ✔ Yes | Circulatory System |
| I87309 | Chronic venous hypertension w/o comp of unsp low extrm | ✔ Yes | Circulatory System |
| I87311 | Chronic venous hypertension w ulcer of r low extrem | ✔ Yes | Circulatory System |
| I87312 | Chronic venous hypertension w ulcer of l low extrem | ✔ Yes | Circulatory System |
| I87313 | Chronic venous hypertension w ulcer of bilateral low extrm | ✔ Yes | Circulatory System |
| I87319 | Chronic venous hypertension w ulcer of unsp low extrm | ✔ Yes | Circulatory System |
| I87321 | Chronic venous hypertension w inflammation of r low extrem | ✔ Yes | Circulatory System |
| I87322 | Chronic venous hypertension w inflammation of l low extrem | ✔ Yes | Circulatory System |
| I87329 | Chronic venous hypertension w inflammation of unsp low extrm | ✔ Yes | Circulatory System |
| I87391 | Chronic venous hypertension w oth comp of r low extrem | ✔ Yes | Circulatory System |
| I87392 | Chronic venous hypertension w oth comp of l low extrem | ✔ Yes | Circulatory System |
| I87399 | Chronic venous hypertension w oth comp of unsp low extrm | ✔ Yes | Circulatory System |
| I973 | Postprocedural hypertension | ✔ Yes | Circulatory System |
| K766 | Portal hypertension | ✔ Yes | Digestive System |
| O1002 | Pre-existing essential hypertension complicating childbirth | ✔ Yes | Pregnancy, Childbirth & Puerperium |
| O1003 | Pre-existing essential hypertension comp the puerperium | ✔ Yes | Pregnancy, Childbirth & Puerperium |
| O1042 | Pre-existing secondary hypertension complicating childbirth | ✔ Yes | Pregnancy, Childbirth & Puerperium |
| O1043 | Pre-existing secondary hypertension comp the puerperium | ✔ Yes | Pregnancy, Childbirth & Puerperium |
| O1092 | Unsp pre-existing hypertension complicating childbirth | ✔ Yes | Pregnancy, Childbirth & Puerperium |
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How to Use This ICD-10-CM Lookup Tool
This free tool lets you search the complete ICD-10-CM code set used in the United States. You can search two ways:
- By keyword — type a condition name like diabetes, hypertension, or pneumonia to see all matching codes
- By code prefix — type a code like E11 to see all codes in that category
Understanding the Results
- Billable (✔ Yes) — this code can be used on a claim. It's specific enough to submit.
- Header — this is a category-level code. You must use a more specific child code for billing.
- Category — the ICD-10-CM chapter this code belongs to (e.g. Endocrine, Respiratory).
📋 CPC Exam Tip — ICD-10-CM Sequencing
On the CPC exam, always sequence the principal diagnosis first. For combination codes (a single code that captures two conditions), use the combination code rather than two separate codes. Check the Tabular List for "Use additional code" and "Code first" instructions.
Official ICD-10-CM Resources
This tool is for educational use. For official billing and compliance purposes, always verify codes against: