List of production codes

Doctor Who production codes do not always follow air dates.

TV story production codes

 * A: An Unearthly Child a.k.a. 100,000 BC, The Tribe of Gum
 * B: The Daleks a.k.a. The Dead Planet, The Mutants, Beyond the Sun
 * C: The Edge of Destruction a.k.a. Inside the Spaceship
 * D: Marco Polo
 * E: The Keys of Marinus
 * F: The Aztecs
 * G: The Sensorites
 * H: The Reign of Terror a.k.a. The French Revolution
 * J: ''Planet of Giants'
 * K: The Dalek Invasion of Earth
 * L: The Rescue
 * M: The Romans
 * N: The Web Planet
 * P: The Crusade
 * Q: The Space Museum
 * R: The Chase
 * S: The Time Meddler
 * T: Galaxy 4
 * T/A: Mission to the Unknown, a.k.a. Dalek Cutaway
 * U: The Myth Makers
 * V: The Daleks' Master Plan, a.k.a. The Dalek Master Plan
 * W: The Massacre of St Bartholomew's Eve, a.k.a. The Massacre
 * X: The Ark
 * Y: The Celestial Toymaker
 * Z: The Gunfighters
 * AA: The Savages
 * BB: The War Machines
 * CC: The Smugglers
 * DD: The Tenth Planet
 * EE: The Power of the Daleks
 * FF: The Highlanders
 * GG: The Underwater Menace
 * HH: The Moonbase
 * JJ: The Macra Terror
 * KK: The Faceless Ones
 * LL: The Evil of the Daleks
 * MM: The Tomb of the Cybermen
 * NN: The Abominable Snowmen
 * OO: The Ice Warriors
 * PP: The Enemy of the World
 * QQ: The Web of Fear
 * RR: Fury from the Deep
 * SS: The Wheel in Space
 * TT: The Dominators
 * UU: The Mind Robber
 * VV: The Invasion
 * WW: The Krotons
 * XX: The Seeds of Death
 * YY: The Space Pirates
 * ZZ: The War Games
 * AAA: Spearhead from Space
 * BBB: Doctor Who and the Silurians
 * CCC: The Ambassadors of Death
 * DDD: Inferno
 * EEE: Terror of the Autons
 * FFF: The Mind of Evil
 * GGG: The Claws of Axos
 * HHH: Colony in Space
 * JJJ: The Dæmons
 * KKK: Day of the Daleks
 * LLL: The Sea Devils
 * MMM: The Curse of Peladon
 * NNN: The Mutants
 * OOO: The Time Monster
 * PPP: Carnival of Monsters
 * QQQ: Frontier in Space
 * RRR: The Three Doctors
 * SSS: Planet of the Daleks
 * TTT: The Green Death
 * UUU: The Time Warrior
 * WWW: Invasion of the Dinosaurs
 * XXX: Death to the Daleks
 * YYY: The Monster of Peladon
 * ZZZ: Planet of the Spiders
 * 4A: Robot
 * 4B: The Sontaran Experiment
 * 4C: The Ark in Space
 * 4D: Revenge of the Cybermen
 * 4E: Genesis of the Daleks
 * 4F: Terror of the Zygons
 * 4G: Pyramids of Mars
 * 4H: Planet of Evil
 * 4J: The Android Invasion
 * 4K: The Brain of Morbius
 * 4L: The Seeds of Doom
 * 4M: The Masque of Mandragora
 * 4N: The Hand of Fear
 * 4P: The Deadly Assassin
 * 4Q: The Face of Evil
 * 4R: The Robots of Death
 * 4S: The Talons of Weng-Chiang
 * 4T: The Invisible Enemy
 * 4V: Horror of Fang Rock
 * 4W: The Sun Makers
 * 4X: Image of the Fendahl
 * 4Y: Underworld
 * 4Z: The Invasion of Time
 * 5A: The Ribos Operation
 * 5B: The Pirate Planet
 * 5C: The Stones of Blood
 * 5D: The Androids of Tara
 * 5E: The Power of Kroll
 * 5F: The Armageddon Factor
 * 5G: The Creature from the Pit
 * 5H: City of Death
 * 5J: Destiny of the Daleks
 * 5K: Nightmare of Eden
 * 5L: The Horns of Nimon
 * 5M: Shada
 * 5N: The Leisure Hive
 * 5P: State of Decay
 * 5Q: Meglos
 * 5R: Full Circle
 * 5S: Warriors' Gate
 * 5T: The Keeper of Traken
 * 5V: Logopolis
 * 5W: Four to Doomsday
 * 5X: The Visitation
 * 5Y: Kinda
 * 5Z: Castrovalva
 * 6A: Black Orchid
 * 6B: Earthshock
 * 6C: Time-Flight
 * 6D: Snakedance
 * 6E: Arc of Infinity
 * 6F: Mawdryn Undead
 * 6G: Terminus
 * 6H: Enlightenment
 * 6J: The King's Demons
 * 6K: The Five Doctors
 * 6L: Warriors of the Deep
 * 6M: The Awakening
 * 6N: Frontios
 * 6P: Resurrection of the Daleks
 * 6Q: Planet of Fire
 * 6R: The Caves of Androzani
 * 6S: The Twin Dilemma
 * 6T: Attack of the Cybermen
 * 6V: Vengeance on Varos
 * 6W: The Mark of the Rani
 * 6X: The Two Doctors
 * 6Y: Timelash
 * 6Z: Revelation of the Daleks
 * 7A: The Mysterious Planet
 * 7B: Mindwarp
 * 7C-1: Terror of the Vervoids
 * 7C-2: The Ultimate Foe a.k.a. Time, Inc.
 * 7D: Time and the Rani
 * 7E: Paradise Towers
 * 7F: Delta and the Bannermen
 * 7G: Dragonfire
 * 7H: Remembrance of the Daleks
 * 7J: The Greatest Show in the Galaxy
 * 7K: Silver Nemesis
 * 7L: The Happiness Patrol
 * 7M: The Curse of Fenric
 * 7N: Battlefield
 * 7P: Survival
 * 7Q: Ghost Light

Big Finish production codes

 * 4R/A: The Foe from the Future
 * 4V/A: The Valley of Death
 * 6C/A: The Land of the Dead
 * 6C/B: Winter for the Adept
 * 6C/C: The Mutant Phase
 * 6C/D: Primeval
 * 6C/E: Spare Parts
 * 6C/F: Creatures of Beauty
 * 6C/G: The Game
 * 6C/H: Circular Time
 * 6C/J: Return to the Web Planet
 * 6E/A: Omega
 * 6E/AA: The Elite
 * 6E/AB: Hexagora
 * 6E/AC The Children of Seth
 * 6P/A: Phantasmagoria
 * 6P/B: Loups-Garoux
 * 6P/C: Singularity
 * 6Q/A: Red Dawn
 * 6Q/B: The Eye of the Scorpion
 * 6Q/C: The Church and the Crown
 * 6Q/D: Nekromanteia
 * 6Q/E: The Axis of Insanity
 * 6Q/F: The Roof of the World
 * 6Q/G: Three's a Crowd
 * 6Q/H: The Council of Nicaea
 * 6Q/I: The Kingmaker
 * 6Q/J: The Gathering
 * 6W/A: Davros
 * 6W/B: Cryptobiosis
 * 6Y/A: Year of the Pig
 * 6Y/AA: The Nightmare Fair
 * 6Y/AB: Mission to Magnus
 * 6Y/AC: Leviathan
 * 6Y/AD: The Hollows of Time
 * 6Y/AE: Paradise 5
 * 6Y/AF: Point of Entry
 * 6Y/AG: The Song of Megaptera
 * 6Y/AH: The Macros
 * 6Z/A: Whispers of Terror
 * 6Z/B: ...ish
 * 6Z/C: The Reaping
 * 7CpreA: Her Final Flight
 * 7C/A: The Marian Conspiracy
 * 7C/B: The Spectre of Lanyon Moor
 * 7C/C: The Apocalypse Element
 * 7C/D: Bloodtide
 * 7C/E: Project: Twilight
 * 7C/F: The Sandman
 * 7C/G: Jubilee
 * 7C/H: Doctor Who and the Pirates
 * 7C/K: Arrangements for War
 * 7C/J: Project: Lazarus
 * 7C/L: Medicinal Purposes
 * 7C/MA: Pier Pressure
 * 7C/MB: The Nowhere Place
 * 7CPD: Return of the Krotons 
 * 7C/R: The One Doctor
 * 7C/S: The Juggernauts
 * 7C/T: Catch-1782
 * 7C/U: Thicker Than Water
 * 7D/A: Unregenerate!
 * 7D/B: Red
 * 7E/A: Bang-Bang-A-Boom!
 * 7E/B: Flip-Flop
 * 7F/A: The Fires of Vulcan
 * 7R: The Fearmonger
 * 7S: The Genocide Machine
 * 7T: Dust Breeding
 * 7U: Colditz
 * 7V: The Rapture
 * 7W: The Harvest
 * 7W/A: Dreamtime
 * 7W/B: LIVE 34
 * 7W/C: Night Thoughts
 * 7W/D: The Settling
 * 7W/E: No Man's Land
 * 7W/F: Nocturne
 * 7X: Project: Lazarus
 * 7Y: Master
 * 7Z: The Sirens of Time
 * 8B: Storm Warning
 * 8C: Sword of Orion
 * 8D: The Stones of Venice
 * 8E: Minuet in Hell
 * 8F: Invaders from Mars
 * 8G: The Chimes of Midnight
 * 8H: Seasons of Fear
 * 8J: Embrace the Darkness
 * 8K: The Time of the Daleks
 * 8L: Neverland
 * 8L: Zagreus
 * 8M: Scherzo
 * 8P: The Creed of the Kromon
 * 8Q: The Natural History of Fear
 * 8R: The Twilight Kingdom
 * 8S: Faith Stealer
 * 8T: The Last
 * 8U: Caerdroia
 * 8V: The Next Life
 * 8W: Terror Firma
 * 8X: Scaredy Cat
 * 8Y: Other Lives
 * 8Y/A: Time Works
 * 8Y/B: Something Inside
 * 8Y/C: Memory Lane