Mapping Context

Gender

If the source concept asserts a gender restriction, a target will be selected including the restriction. If no targets with restriction apply, a more general target will be chosen. The mapCategoryId will indicate that the source is properly classified ( 447637006 | Map source concept is properly classified (foundation metadata concept)| ) in ICD-10, the mapRule will default to TRUE and mapAdvice will be NULL. The first IF A rule applied should be female; the latter should be male. This will prevent any sequencing discrepancies from resulting.

• 6738008 | Female infertility (disorder)| maps to N97.9 Female infertility, unspecified

• 2904007 | Male infertility (disorder)| maps to N46 Male infertility

If the source concept does not assert gender, yet only gender restricted target codes are found within ICD-10, the map will be considered CONTEXT DEPENDENT. The Map Terminologist will create three map members for this source concept, including rules for mapping to female and male record context as appropriate to the ICD-10 structures, and a default record indicating that the concept is not classifiable in the absence of gender information.

Gender Examples

8619003 | Infertile (finding)|

Map within a single mapGroup employing sequential rules for female and male gender patients and exclusion rules as appropriate. The Map Target for each record will link to the appropriate classification code for that gender context; females map to N97.9 Female infertility, unspecified and males map to N46 Male infertility. The mapCategoryId for each will indicate that the record is context dependent, the mapRule will be "IFA 248152002 Female (finding)" or "IFA 248153007 Male (finding)". A final default Map member will also be created should rule processing for gender not be supported by vendor software. This will include a mapCategoryId indicating the Map is not classifiable ( 447638001 | Mapsource concept cannot be classified with available data| ), requiring patient data.

430556008 | Malignant neoplasm of genital structure (disorder)|

Has a similar mapping. In this case, the map for females is C57.9 Malignant neoplasm: Female genital organ, unspecified. The mapping for males is C63.9 Malignant neoplasm: Male genital organ, unspecified.

410070006 | Herniated urinary bladder (disorder)|

Requires gender restrictions; the map for female is N81.1 Cystocele, and the map for male is N32.8 Other specified disorders of bladder.

Patient Age

If the source concept asserts an age or phase of life for onset of the disorder, a target will be selected first including the restriction or, if none is available, then a more general classification target that is inclusive of the source concept. No map rule restrictions for age will be applied in cases where there is a properly classified ICD-10 target. If the authoritative sources include specifications for employment of age, those will be used. Otherwise, these definitions for common phases of life will be employed:

Definitions applied to common phases of life

• Neonatal: from birth to completion of 28th day of life

• Perinatal: 22 weeks of gestation to completion of 7th day of life

• Childhood: from birth until 19th birthday

• Adulthood: from 19th birthday until death

• Infant/Infancy: from birth until 2nd birthday

• Juvenile: from 2nd birthday until 19th birthday

• Adolescence: from 12th birthday until 19th birthday

• Pre-senile: from birth until 65th birthday

• Senile: from 65th birthday

If the source concept does not assert age or time of life and only restricted targets are within scope, the map will be considered CONTEXT DEPENDENT and the Map Terminologist will assemble two or more Map members including Map Rules to properly classify to each ICD-10 target classification.

Example

32398004 |Bronchitis (disorder)|

Flag for age context using the Age of Onset map rule, because WHO advises that Bronchitis (without further specification) should map to J20.9 Acute bronchitis for a patient under age 15, and map to J40 Bronchitis not specified as chronic or acute for patients above this age.

Acquired Versus Congenital

A source concept which identifies origination as a congenital or acquired condition will be mapped to a target of congenital or acquired classification should one exist (mapCategoryId= 447637006 | Map source concept is properly classified| , mapRule=NULL).

If a source concept is general (i.e. does not specify congenital or acquired) and only specific targets exist, the ICD-10 authoritative index will be searched for a default Map member, either "congenital" or "acquired". When a default is provided, this context will be employed to create one appropriate Map member and mapCategoryId will be ( 447637006 | Map source concept is properly classified| ), mapRule=NULL, mapAdvice = "MAPPED FOLLOWING WHO GUIDANCE".