Table 1.

HPV ICD-9 Code, 2007–2015.

ICD-9	Frequency	Person (N)	aHR (95% CI) for cancer
078.10 viral wart, unspecified	9,252,831 (75.46%)	903,660	1.579(1.544–1.616)
078.19 other specified viral warts	1,911,742 (15.59%)	226,622	1.348(1.298–1.401)
078.1X viral warts	677,015 (5.52%)	83,517	1.365(1.296–1.437)
078.11 condyloma acuminatum	411,947 (3.36%)	51,575	1.739(1.618–1.869)
079.4X HPV in conditions classified elsewhere and of unspecified site	8,246 (0.07%)	1,090	3.057(2.172–4.301)

One person could have multiple codes. The total number of persons > recruited. ICD-9 795.X and 796.X were rarely used in Taiwan.