The incident in question occurred during the fourth term of Saturday's match between Port Adelaide and West Adelaide, with Lord arriving late to a marking contest where Bloods player Hamish Ellem was parked under the ball.
Lord flexed his right arm and struck Ellem in the back of the head with his elbow/forearm, with the young forward's actions viewed as intentional conduct, high contact and low impact by the competition's Match Review Panel, resulting in a base sanction of two matches.
With an early guilty plea, Lord has accepted a reduced one-game and therefore will be unavailable for the Power's Round 17 matchup with Gold Coast on Saturday night.
The suspension also sees Lord ruled out of the Magpies' upcoming clash with Woodville-West Torrens.
The ban comes as Port Adelaide looks to shift their taller stocks for Round 17, with ruckman Scott Lycett set to miss the coming weeks with a knee concern.
Lord made his debut in Round 6 against West Coast before playing a further five matches, sharing his duties as a tall forward and pinch-hit ruck option.