Hi Team,

Below mentioned are functions from CMS156v11:

CMD.CodeToDaily(Frequency Code)
case
  when Frequency ~ "Once daily (qualifier value)" then 1.0
  when Frequency ~ "Twice a day (qualifier value)" then 2.0
  when Frequency ~ "Three times daily (qualifier value)" then 3.0
  when Frequency ~ "Four times daily (qualifier value)" then 4.0
  when Frequency ~ "Every twenty four hours (qualifier value)" then 1.0
  when Frequency ~ "Every twelve hours (qualifier value)" then 2.0
  when Frequency ~ "Every thirty six hours (qualifier value)" then 0.67
  when Frequency ~ "Every eight hours (qualifier value)" then 3.0
  when Frequency ~ "Every four hours (qualifier value)" then 6.0
  when Frequency ~ "Every six hours (qualifier value)" then 4.0
  when Frequency ~ "Every seventy two hours (qualifier value)" then 0.34
  when Frequency ~ "Every forty eight hours (qualifier value)" then 0.5
  when Frequency ~ "Every eight to twelve hours (qualifier value)" then 2.0
  when Frequency ~ "Every six to eight hours (qualifier value)" then 3.0
  when Frequency ~ "Every three to four hours (qualifier value)" then 6.0
  when Frequency ~ "Every three to six hours (qualifier value)" then 4.0
  when Frequency ~ "Every two to four hours (qualifier value)" then 6.0
  when Frequency ~ "One to four times a day (qualifier value)" then 4.0
  when Frequency ~ "One to three times a day (qualifier value)" then 3.0
  when Frequency ~ "One to two times a day (qualifier value)" then 2.0
  when Frequency ~ "Two to four times a day (qualifier value)" then 4.0
  else null
end

CMD.QuantityToDaily(Frequency Quantity)
case Frequency.unit
    when 'h' then (24.0 / Frequency.value)
    when 'min' then (24.0 / Frequency.value) * 60
    when 's' then (24.0 / Frequency.value) * 60 * 60
    when 'd' then (24.0 / Frequency.value) / 24
    when 'wk' then (24.0 / Frequency.value) / (24 * 7)
    when 'mo' then (24.0 / Frequency.value) / (24 * 30) /* assuming 30 days in month */
    when 'a' then (24.0 / Frequency.value) / (24 * 365) /* assuming 365 days in year */
    when 'hour' then (24.0 / Frequency.value)
    when 'minute' then (24.0 / Frequency.value) * 60
    when 'second' then (24.0 / Frequency.value) * 60 * 60
    when 'day' then (24.0 / Frequency.value) / 24
    when 'week' then (24.0 / Frequency.value) / (24 * 7)
    when 'month' then (24.0 / Frequency.value) / (24 * 30) /* assuming 30 days in month */
    when 'year' then (24.0 / Frequency.value) / (24 * 365) /* assuming 365 days in year */
    when 'hours' then (24.0 / Frequency.value)
    when 'minutes' then (24.0 / Frequency.value) * 60
    when 'seconds' then (24.0 / Frequency.value) * 60 * 60
    when 'days' then (24.0 / Frequency.value) / 24
    when 'weeks' then (24.0 / Frequency.value) / (24 * 7)
    when 'months' then (24.0 / Frequency.value) / (24 * 30) /* assuming 30 days in month */
    when 'years' then (24.0 / Frequency.value) / (24 * 365) /* assuming 365 days in year */
    else null
  end

CMD.ToDaily(Frequency Choice<Quantity, Code>)
case
  when Frequency is Quantity then QuantityToDaily(Frequency as Quantity)
  else CodeToDaily(Frequency as Code)
end

Query 1:

For CMD.CodeToDaily(Frequency Code):
For example: 
when Frequency ~ "Once daily (qualifier value)" then 1.0  
code "Once daily (qualifier value)" ("SNOMEDCT Code (229797004)")

If we are getting a numeric value for frequency from client, is it necessary to use the above mentioned SNOMEDCT code ?

Query 2:

CMD.QuantityToDaily(Frequency Quantity)

Need more understanding of this functionality.
For example:  
when 'h' then (24.0 / Frequency.value)

How to interpret this. How to calculate Frequency.value here?

Request you to provide us with the resolution urgently as our client deliverables are dependent on it.