FIELD L 

 Column 44 



K PREGNANT 



L VIRGIN 



M HOST (OR ORGAN, TISSUE, OR CELL SITE OF THE PATHOLOGY) IS CONGENITALLY ABNORMAL. 



N ORGAN OR TISSUE OF THE HOST (SPECIFIED IN FIELD H-1 OR I AS THE SITE OF THE PATHOLOGY 



OR TUMOR BEING TREATED) IS IN A PATHOLOGICAL STATE other than the pathological state 

 being treated (specified in Field E). Use of this symbol includes indication of physiological 

 stress on the organ when this stress is not a condition being treated by the test compound; 

 e. g. , the removal of one of a pair of organs of the host, or part of an organ, or an entire organ, 

 or any other special pretreatment to produce the exaggerated condition of in situ experimental 

 stress of an organ specified in Field H-1 or of the tissue specified in Field I. The description 

 of the specific treatment to produce stress is not coded (e. g. , the organ removed to produce 

 stress is not coded in Field H-2, but it is included in the written abstract). The symbol is 

 used only if that secondary pathology or infectious organism which is not being specifically 

 treated is restricted to that organ or tissue or if the organ or tissue is excised (indicated by 

 Symbol R in Field G-1, placing Symbol N in Field G-2); if the secondary pathology is more 

 general and the organ or tissue is in situ , use Symbol 5 or 7. 



ORGAN OF THE HOST (TO BE SPECIFIED IN FIELD H-2 AS AN ORGAN OTHER THAN THE SPECIFIC 



SITE OF THE PATHOLOGY BEING TREATED, IN FIELD H-1) IS IN A PATHOLOGICAL STATE OTHER 

 THAN THE PATHOLOGICAL STATE BEING TREATED (SPECIFIED IN FIELD E). This includes the 

 state of experimental physiological stress on an organ (Field H-2) other than the site of the 

 pathology being treated (Field H-1), when this stress is not a condition being treated by the 

 test compound. (Symbol N indicates stress on the organ in Field H-1. ) This symbol is used 

 only if the secondary pathology is confined to an organ; if the secondary pathology is more 

 general, Symbol 5 or 7 will be used and nothing will be coded in Field H-2. 



P HOST (CONSIDERED AS A WHOLE) HAS HAD REMOVED- -PRIOR TO INFECTION OR PRIOR TO THE 



TEST- -AN ORGAN, TISSUE. OR FLUID, FOR ANY REASON OTHER THAN SERVING AS A PART OF 

 THE TREATMENT FOR THE PATHOLOGY CODED IN FIELD E. (The organ removed from the host 

 is not a specific site of the pathology and is therefore coded in Field H-2. ) Symbol B is used 

 if an endocrine gland is removed to produce a hormone deficiency. Symbol P is not used to 

 indicate removal of an organ to produce experimental stress on the organism; this can be indi- 

 cated only by Symbol 7. If the removal of an organ is part of the treatment of the pathology in 

 Field E, of which the test compound treatment represents the other part, never use Symbol P, 

 but only Symbol Z. 



Q ORGAN OR TISSUE OF THE HOST, IN SITU (SPECIFIED IN FIELD H-1 AS THE ORGAN OR IN 



FIELD I AS THE TISSUE WITH THE INFECTION OR PATHOLOGY TREATED WITH THE TEST 

 COMPOUND) ISOLATED IN SOME SPECIFIC WAY FROM THE HOST ORGANISM (denervation, 

 circulatory obstruction, etc. ), isolated from the material it normally processes, surgically 

 altered solely for the facility of observation, or isolated from one of its tissue components, 

 etc. See the Key for a discussion of uses of Symbols 2, P, Q, R, and B. 



R ORGAN, TISSUE , OR FLUID OF THE HOST, EXCISED (specified in Field H- 1 or I as the organ or 



tissue in the pathological condition coded in Field E), isolating it from influences of all other 

 factors of the host organism, and maintained in a "secondary, non-living host" (saline bath, 

 nutrient medium, perfusate, etc. ) described in the written abstract. 



S HOST (OR ORGAN OR TISSUE SITE OF THE PATHOLOGY) HAS AN ORGAN OR TISSUE (EITHER 



NORMAL OR PATHOLOGICAL) INCIDENTALLY IMPLANTED IN IT, but this implant is not the 

 pathology being treated nor is it part of the treatment for the pathology coded in Field E. 

 (E. g. , rats with a tumor implant are treated with a candidate anthelmintic [coded as the test 

 compound] for tapeworm prophylaxis. The tumor implant would be indicated better by Symbol 

 S than by Symbol 7. ) Excluded are situations when the implant is an endocrine gland implanted 

 in the host to produce a hormone excess (Symbol C) or an organ implanted to produce special 

 stress (Symbol 7, N, or 0). Such an implant can be coded in Field H-2, if it is an organ; if 

 It is a tissue or a tumor, it can not be coded, but should be included in the written abstract. 

 The site of implant can not be coded, but should also be included in the written abstract. 



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