Yes, it does say if a priest cannot be present … … the 3 usual conditions are replaced etc.
Indulgences at the Point of Death Authored By: Father Edward McNamara, LC
" “‘An indulgence is partial or plenary according as it removes either part or all of the temporal punishment due to sin’ [
ibid ., Norm 2, see Norm 3]. Indulgences may be applied to the living or the dead.”
The ritual for the pastoral care of the sick, in Nos. 195 and 201, indicates the rite followed for those approaching death.
No. 201 touches on viaticum outside of Mass, which would be the usual circumstance for this blessing. The rubric states:
"At the conclusion of the sacrament of penance or the penitential rite, the priest may give the apostolic pardon for the dying, using one of the following:
“Through the holy mysteries of our redemption, may almighty God release you from all punishments in this life and in the life to come. May he open to you the gates of paradise and welcome you to everlasting joy.”
Or the following:
“By the authority which the Apostolic See has given me I grant you a full pardon and the remission of all your sins in the name of the Father, and of the Son and of the Holy Spirit. R. Amen.”
Should a priest be unavailable to impart the papal blessing, the Handbook of Indulgences, No. 28, offers another path. To wit:
"Priests who minister the sacraments to the Christian faithful who are in a life-and-death situation should not neglect to impart to them the apostolic blessing, with its attached indulgence. But if a priest cannot be present, holy mother Church lovingly grants such persons who are rightly disposed a plenary
indulgence to be obtained
in articulo mortis, at the approach of death, provided they regularly prayed in some way during their lifetime. The use of a crucifix or a cross is recommended in obtaining this plenary indulgence.
"In such a situation the three usual conditions required in order to gain a plenary indulgence are substituted for by the condition ‘provided they regularly prayed in some way.’
“The Christian faithful can obtain the plenary indulgence mentioned here as death approaches
(in articulo mortis) even if they had already obtained another plenary indulgence that same day.”
This grant, in No. 28, is taken from the apostolic constitution
Indulgentiarum Doctrina, Norm 18, issued by Pope Paul VI on Jan. 1, 1967.
Unlike the sacrament of the sick, the papal blessing at the approach of death along with its attendant indulgence may be imparted only once during the same illness.
Should a person recover it may be imparted again at a new threat of imminent death." <-@HomeschoolDad