diff --git a/code/__DEFINES/flags.dm b/code/__DEFINES/flags.dm
index 31c569904da..2c5c77ffa9c 100644
--- a/code/__DEFINES/flags.dm
+++ b/code/__DEFINES/flags.dm
@@ -36,7 +36,7 @@
 
 #define NO_BLOOD		1
 #define NO_BREATHE 		2
-#define NO_DNA_RAD		4
+#define NO_DNA			4
 #define RAD_ABSORB		8
 #define NO_SCAN 		16
 #define NO_PAIN 		32
diff --git a/code/game/dna/dna2_domutcheck.dm b/code/game/dna/dna2_domutcheck.dm
index 745af66ac15..8bf993f43eb 100644
--- a/code/game/dna/dna2_domutcheck.dm
+++ b/code/game/dna/dna2_domutcheck.dm
@@ -5,7 +5,7 @@
 // flags: See below, bitfield.
 #define MUTCHK_FORCED        1
 /proc/domutcheck(var/mob/living/M, var/connected=null, var/flags=0)
-		
+
 	for(var/datum/dna/gene/gene in dna_genes)
 		if(!M || !M.dna)
 			return
@@ -52,7 +52,7 @@
 /proc/genemutcheck(var/mob/living/M, var/block, var/connected=null, var/flags=0)
 	if(ishuman(M)) // Would've done this via species instead of type, but the basic mob doesn't have a species, go figure.
 		var/mob/living/carbon/human/H = M
-		if(H.species.flags & NO_DNA_RAD)
+		if(H.species.flags & NO_DNA)
 			return
 	if(!M)
 		return
@@ -76,12 +76,12 @@
 	var/gene_active = (gene.flags & GENE_ALWAYS_ACTIVATE)
 	if(!gene_active)
 		gene_active = M.dna.GetSEState(gene.block)
-		
+
 	var/defaultgenes // Do not mutate inherent species abilities
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		defaultgenes = H.species.default_genes
-		
+
 		if((gene in defaultgenes) && gene_active)
 			return
 
diff --git a/code/game/dna/dna_modifier.dm b/code/game/dna/dna_modifier.dm
index bf5e661b299..bab4afbbdac 100644
--- a/code/game/dna/dna_modifier.dm
+++ b/code/game/dna/dna_modifier.dm
@@ -326,7 +326,7 @@
 
 	if(ishuman(occupant))
 		var/mob/living/carbon/human/H = occupant
-		if((H.species.flags & NO_DNA_RAD))
+		if((H.species.flags & NO_DNA))
 			return 1
 
 	var/radiation_protection = occupant.run_armor_check(null, "rad", "Your clothes feel warm.", "Your clothes feel warm.")
diff --git a/code/game/gamemodes/changeling/changeling.dm b/code/game/gamemodes/changeling/changeling.dm
index bc323d14c3c..324fa636740 100644
--- a/code/game/gamemodes/changeling/changeling.dm
+++ b/code/game/gamemodes/changeling/changeling.dm
@@ -316,7 +316,7 @@ var/list/possible_changeling_IDs = list("Alpha","Beta","Gamma","Delta","Epsilon"
 		user << "<span class='warning'>DNA of [target] is ruined beyond usability!</span>"
 		return
 
-	if(T.species.flags & NO_DNA_RAD)
+	if(T.species.flags & NO_DNA)
 		user << "<span class='warning'>This creature does not have DNA!</span>"
 		return
 
diff --git a/code/game/gamemodes/changeling/powers/swap_form.dm b/code/game/gamemodes/changeling/powers/swap_form.dm
index be5df7d9a67..09ecf7029bb 100644
--- a/code/game/gamemodes/changeling/powers/swap_form.dm
+++ b/code/game/gamemodes/changeling/powers/swap_form.dm
@@ -17,7 +17,7 @@
 	if((NOCLONE || SKELETON || HUSK) in target.mutations)
 		user << "<span class='warning'>DNA of [target] is ruined beyond usability!</span>"
 		return
-	if(!istype(target) || issmall(target) || target.species.flags & NO_DNA_RAD || target.species.flags & NO_SCAN || target.species.flags & NO_BLOOD)
+	if(!istype(target) || issmall(target) || target.species.flags & NO_DNA || target.species.flags & NO_SCAN || target.species.flags & NO_BLOOD)
 		user << "<span class='warning'>[target] is not compatible with this ability.</span>"
 		return
 	return 1
diff --git a/code/game/objects/items/weapons/dna_injector.dm b/code/game/objects/items/weapons/dna_injector.dm
index eae015b09e7..8a522c08f3b 100644
--- a/code/game/objects/items/weapons/dna_injector.dm
+++ b/code/game/objects/items/weapons/dna_injector.dm
@@ -99,7 +99,7 @@
 
 	if(ishuman(M)) // Would've done this via species instead of type, but the basic mob doesn't have a species, go figure.
 		var/mob/living/carbon/human/H = M
-		if(H.species.flags & NO_DNA_RAD)
+		if(H.species.flags & NO_DNA)
 			return 0
 
 	if (!user.IsAdvancedToolUser())
diff --git a/code/modules/events/mass_hallucination.dm b/code/modules/events/mass_hallucination.dm
index 1d5ac326517..d7877676b21 100644
--- a/code/modules/events/mass_hallucination.dm
+++ b/code/modules/events/mass_hallucination.dm
@@ -4,7 +4,7 @@
 /datum/event/mass_hallucination/start()
 	for(var/mob/living/carbon/human/H in living_mob_list)
 		var/armor = H.getarmor(type = "rad")
-		if((H.species.flags & NO_DNA_RAD) || armor >= 75) // Leave DNA-less species/rad armored players completely unaffected
+		if((H.species.flags & RADIMMUNE) || armor >= 75) // Leave radiation-immune species/rad armored players completely unaffected
 			continue
 		H.hallucination += rand(50, 100)
 
diff --git a/code/modules/events/radiation_storm.dm b/code/modules/events/radiation_storm.dm
index b297f898feb..f798e9984d4 100644
--- a/code/modules/events/radiation_storm.dm
+++ b/code/modules/events/radiation_storm.dm
@@ -37,7 +37,7 @@
 		for(var/i = 0, i < 10, i++)
 			for(var/mob/living/carbon/human/H in living_mob_list)
 				var/armor = H.getarmor(type = "rad")
-				if((H.species.flags & NO_DNA_RAD) || armor >= 100) // Leave DNA-less species/fully rad armored players completely unaffected
+				if((H.species.flags & RADIMMUNE) || armor >= 100) // Leave radiation-immune species/fully rad armored players completely unaffected
 					continue
 				var/turf/T = get_turf(H)
 				if(!T)
diff --git a/code/modules/mob/living/carbon/human/human_damage.dm b/code/modules/mob/living/carbon/human/human_damage.dm
index e088434d7e3..cbf77866005 100644
--- a/code/modules/mob/living/carbon/human/human_damage.dm
+++ b/code/modules/mob/living/carbon/human/human_damage.dm
@@ -142,7 +142,7 @@
 /mob/living/carbon/human/adjustCloneLoss(var/amount)
 	..()
 
-	if(species.flags & (NO_DNA_RAD))
+	if(species.flags & (NO_DNA))
 		cloneloss = 0
 		return
 
diff --git a/code/modules/mob/living/carbon/human/life.dm b/code/modules/mob/living/carbon/human/life.dm
index 57ea1bb7088..8677aa80420 100644
--- a/code/modules/mob/living/carbon/human/life.dm
+++ b/code/modules/mob/living/carbon/human/life.dm
@@ -845,7 +845,7 @@ var/global/list/brutefireloss_overlays = list("1" = image("icon" = 'icons/mob/sc
 		//the analgesic effect wears off slowly
 		analgesic = max(0, analgesic - 1)
 
-		if(hallucination && !(species.flags & NO_DNA_RAD))
+		if(hallucination)
 			spawn()
 				handle_hallucinations()
 
diff --git a/code/modules/mob/living/carbon/human/species/station.dm b/code/modules/mob/living/carbon/human/species/station.dm
index 1b47c7a30ed..ff9ae6ff835 100644
--- a/code/modules/mob/living/carbon/human/species/station.dm
+++ b/code/modules/mob/living/carbon/human/species/station.dm
@@ -496,7 +496,7 @@
 
 	passive_temp_gain = 10 //this should cause IPCs to stabilize at ~80 C in a 20 C environment.
 
-	flags = IS_WHITELISTED | NO_BREATHE | NO_SCAN | NO_BLOOD | NO_PAIN | NO_DNA_RAD | NO_POISON
+	flags = IS_WHITELISTED | NO_BREATHE | NO_SCAN | NO_BLOOD | NO_PAIN | NO_DNA | NO_POISON | RADIMMUNE
 	clothing_flags = HAS_SOCKS
 	bodyflags = HAS_SKIN_COLOR
 	dietflags = 0		//IPCs can't eat, so no diet
diff --git a/code/modules/mob/living/damage_procs.dm b/code/modules/mob/living/damage_procs.dm
index 999ebacb58d..a19572f67a2 100644
--- a/code/modules/mob/living/damage_procs.dm
+++ b/code/modules/mob/living/damage_procs.dm
@@ -78,7 +78,7 @@
 	return 1
 
 /mob/living/carbon/human/apply_effect(var/effect = 0, var/effecttype = STUN, var/blocked = 0, var/negate_armor = 0)
-	if((effecttype == IRRADIATE) && (species.flags & NO_DNA_RAD))
+	if((effecttype == IRRADIATE) && (species.flags & RADIMMUNE))
 		return 0
 	return ..()