The amino acids that are less soluble in the solvent will be more attracted to the paper and will remain closer to the original starting point. As a result, a mixture of amino acids can be separated using this technique. : The R f value is calculated from the chromatogram and can be used to help identify unknowns.
Nasal congestion. 1  R09.81 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes. 3  This is the American ICD-10-CM version of R09.81.
Congestion (Nasal congestion). Nasal congestion or âstuffy noseâ is a Partial blockage of the nasal passage caused by swelling of the mucous membrane that lines the nose. It is the result of inflammation of the nasal passages or sinus cavities. Nasal congestion is sometimes accompanied by the accumulation of thick nasal mucus. Nasal congestion is a symptom of the common cold and of hay fever. It may also be caused by certain drugs. The swelling may become persistent in disorders such as chronic sinusitis or nasal polyps.