\tilde \alpha

^.\\\[[\w\d]?]*?..{4,}$

ICD-9-CM PCS Format

Possibly used in Form Locator (FL) 32-35 in the UB-04 form. The CMS write (in their R81CP document):- "Occurrence and occurrence span codes are mutually exclusive. Occurrence codes have values from 01 through 69 and A0 through L9. Occurrence span codes have values from 70 through 99 and M0 throug...

ICD-9-CM Format

The regex should match ICD-10-CM codes, including those with the optional up to 4 characters suffix used in some codes. NOTE: This regex assumes the letters can be mixed case.

Multiple Severity-Diagnostic Related Groups (MS-DRGs)

Multiple Severity-Diagnostic Related Groups (MS-DRGs)

FL 16 - Discharge Hour FL 17 - Patient Discharge Status

CPT is a uniform coding system consisting of descriptive terms and identifying codes used primarily to identify medical services and procedures furnished by physicians and other health care professionals for which they bill public or private health insurance programs. It is a numeric coding system ...

CPT is a uniform coding system consisting of descriptive terms and identifying codes used primarily to identify medical services and procedures furnished by physicians and other health care professionals for which they bill public or private health insurance programs. It is a numeric coding system ...

Used to identify the patient's care during their hospital stay and help ensure that hospitals are reimbursed accurately for their services. A data element corresponding with UB-04 form locator FL4 that classifies the claim as to the type of facility (2nd digit), type of care (3rd digit) and the bil...

Revenue codes are standardized numerical codes used in the healthcare industry to specify the type of service provided by healthcare facilities on patient billing statements. They help categorize and detail the services rendered for both inpatients and outpatients, allowing for accurate billing and ...

These codes are used to indicate where a medical service was provided in US healthcare (https://www.cms.gov/medicare/coding-billing/place-of-service-codes/code-sets). The codes should be 2 digits. Single digits should have a leading 0. It's possible data loading might drop such values, and then t...

Pattern to identify LOINC codes, derived from the description in LOINC.org (June 2024):- LOINC codes have a fixed length field of 7 characters within the LOINC database. Current codes are from 3-7 characters long. If you are currently building a system to include LOINC codes, we advise allowing up t...

A RegEx to match any Intel x86-Assembly register in a case-insensitive way. This is due to a limitation of the engine this regular expression was originally written for. Here is an updated version that is written for Regex-Engines that support the /i flag: https://regex101.com/library/4v1bVf

A RegEx to match any Intel x86-Assembly register.

for find chicken bacon onion

Validate only / non-capturing

validate email address according to RFC 5322 specification. I tried to optimize regex radically restructuring the original BNF-like specification with full support preserved.