This invention relates to the field of patient health care. In particular, it relates to medical 
informatics, and to systems and methods for recording medical transactions. A 
system for recording medical transactions is disclosed, the 
system comprising distinct and multi-linguistic representation 
layers, allowing the de novo composition and construction of medical transaction codes; including a 
user interface including means for inputting medical transactions in a semiotic form one, the semiotic form one input being a 
free form-type, abbreviation-oriented 
natural language textual input, a transaction parser-coder configured to parse said semiotic form one input and to convert it into coded medical transactions in a semiotic form two output, the transaction codes composed and constructed de novo, the semiotic form two output embodying high level 
machine-parseable computer language statements comprehensible to a high certainty level by human users, means for evoking a display of 
system reflection in the form of coded medical transactions in said semiotic form two and system-rated confidence levels representing the match between a code and correspondence with perceived 
user intent, means for receiving user selection input for verifying a selected coded medical transaction, and a transaction mapper configured to convert a semiotic form two input into a semiotic form three transaction by mapping the selected coded transaction into data row in a 
relational database to render the 
transaction data amenable to structured 
query language processing. There is further disclosed a computer-based method for the management of medical transactions, including storing each medical transaction as a 
transaction code in a data row in a 
database table, each 
transaction code including a genre key relating to the nature of the transaction, and including providing storage ledgers for each genre, such that each transaction can be retrieved and displayed as an entry in a storage ledger in accordance with its genre key. This allows medical transactions to be treated akin to accounting transactions, signifying credits and debits in defined transaction ledgers.