| Document and Entity Information | Apr. 19, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 19, 2022 |
| Entity Registrant Name | HEALTHCARE AI ACQUISITION CORP. |
| Entity Central Index Key | 0001848861 |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity File Number | 001-41145 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Tax Identification Number | 98-1585450 |
| Entity Address, Address Line One | 190 Elgin Avenue |
| Entity Address, Address Line Two | George Town |
| Entity Address, City or Town | Grand Cayman |
| Entity Address, Country | KY |
| Entity Address, Postal Zip Code | KY1- 9008 |
| City Area Code | 345 |
| Local Phone Number | 815-8548 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Units | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant |
| Trading Symbol | HAIAU |
| Security Exchange Name | NASDAQ |
| Class A Ordinary Shares | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A ordinary shares included as part of the units |
| Trading Symbol | HAIA |
| Security Exchange Name | NASDAQ |
| Warrants | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants included as part of the units, each whole warrant exercisable for one Class A ordinary share |
| Trading Symbol | HAIAW |
| Security Exchange Name | NASDAQ |
