As used and defined in Lithuanian documents*, it appears to denote excessive/unjustified insurance amount, corresponding to the English “overinsurance”.


* “padidinta+draudimo+suma” (Google)
https://tinyurl.com/yccyalrk


[1]
“8.3 Draudimas padidinta draudimo suma
8.3.1 Jeigu draudimo suma, nurodyta draudimo sutartyje, viršija draudimo vertę, draudimo sutartis negalioja tai draudimo sumos daliai, kuri viršija draudimo vertę.”
(PDF)
http://static.manodraudimas.lt/salygos/PZU_KASKO_DRAUDIMO_Ta...

[2]
“Jei draudimo suma draudimo sutartyje yra nustatyta didesnė nei draudimo vertė, tuomet laikoma, kad tai yra draudi-
mas padidinta draudimo suma. Įvykus draudžiamajam įvykiui ir paaiškėjus draudimo sumos ir draudimo vertės aukš-
čiau nurodytiems neatitikimams, Draudikas už draudimo vertę viršijančią ir tokiu būdu negaliojančią draudimo sumos
dalį atitinkamos draudimo įmokos dalies negrąžina ir draudimo išmokos dalies, viršijančios draudimo vertę, nemoka.”
http://www.ld.lt/sites/default/files/Verslo nutrūkimo draudi...

[3]
“overinsurance :
insurance (as from two or more policies) that exceeds the value of the thing covered
* overinsurance may lead to fraud by the insured; broadly : excessive insurance (as from needlessly duplicative coverage)
http://www.merriam-webster.com/legal/overinsurance

[4]
“overinsurance
(of goods or property) insurance in excess of actual value”
http://www.collinsdictionary.com/dictionary/english/overinsu...

[5]
“overinsurance
Situation where an insured has bought so much coverage that it exceeds the actual cash value (or the replacement cost) of the risk or property insured. For the insurance company overinsurance constitutes a moral hazard because the insured (overinsured) may be tempted to make a false claim to profit from a loss.”
http://www.businessdictionary.com/definition/overinsurance.h...

[6]
“Article 16. Over-Insurance
1. Over-insurance shall be possible only when seeking to avoid devaluation of currency or when an increase in the value of the subject matter is envisaged, if so provided for in the contract of insurance.
2. After establishing that the sum insured stated in the contract of insurance exceeds the value of the subject matter, parties to the contract of insurance shall have the right to demand a reduction of the sum insured. In such cases the insurance contribution shall be reduced accordingly.” - REPUBLIC OF LITHUANIA / LAW ON INSURANCE (obsolete version)
http://e-seimas.lrs.lt/portal/legalAct/lt/TAD/TAIS.101598?jf...