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Parsing and Validating Medical Codes
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Parsing and Validating Medical Codes

MediumPython

Problem

Given a raw string representing medical codes, write a parser to extract and validate specific formatting patterns.

Recognize uppercase ICD-10-CM codes in the form [A-Z][0-9]{2} with an optional dot and one to four uppercase letters or digits. Recognize CPT codes as exactly five digits. Return matches in their original order, excluding codes embedded in larger alphanumeric or dotted tokens.

Function: parse_medical_codes(raw) accepts a string and returns a list of {code, type} dictionaries, using ICD-10-CM or CPT as type values.

Constraints

  • 0 <= len(raw) <= 10^5
  • raw contains printable ASCII characters
  • ICD-10-CM codes use uppercase letters and digits
  • A valid ICD-10-CM suffix contains one to four uppercase letters or digits
  • A valid CPT code contains exactly five digits

Function Signature

def parse_medical_codes(raw):
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