Expert Evaluation of Temporary Incapacity for Work — Indicators and Analysis
The Medical Assessment of Work Capacity
Medical expertise in the field of work capacity is not a distinct procedural category separate from clinical medicine: it constitutes an integral part of the diagnostic, therapeutic, and preventive activities of every physician. Its central purpose is to determine, on the basis of objective health status, the degree to which a person remains capable of performing work-related activities. The bodies responsible for organising and directing this process in Bulgaria are the Ministry of Health and the Regional Health Inspectorates (RHI).
The scope of medical expertise encompasses four distinct functions: the assessment of temporary incapacity for work; the assessment of permanently reduced work capacity in persons of working age, as well as in persons who have acquired pension rights on the basis of insurance contributions and age but remain employed and have not yet had their degree of disability determined; the determination of the type and degree of disability in children under the age of sixteen; and the confirmation or rejection of the occupational nature of diseases.
Five categories of medical assessment bodies operate within this framework, each defined by specific competences and limits of authority. These are the attending physician and dental practitioner; the Emergency Medical Assistance Centre (EMAC); the Medical Consultative Commission (MCC); the Territorial Expert Medical Commission (TEMC); and the National Expert Medical Commission (NEMC).
Temporary Incapacity for Work
Temporary incapacity for work exists where an insured person is temporarily unable or prevented from working. The grounds on which this condition may be established include general illness, accident, occupational disease, treatment abroad, sanatorium-resort treatment, urgent medical examination or investigation, quarantine, removal from work by order of the health authorities, care for a sick or quarantined family member, urgent accompaniment of a family member for medical examination or treatment in the same or another locality, pregnancy and childbirth, and care for a healthy child under twelve returned from a childcare facility or school due to a quarantine affecting that institution, a specific class, or the child directly.
The document certifying temporary incapacity is the sickness certificate. It performs four distinct functions. Medically, it confirms the health status of the individual and the objective basis for their absence from work. Legally, it provides the insured person with a protected entitlement to leave. Financially, it constitutes the statutory basis for the payment of cash compensation. Statistically, it serves as the primary source document for the routine surveillance of temporary incapacity morbidity.
A sickness certificate is issued on the day temporary incapacity is established, with narrow exceptions. It may not be backdated by more than two days, and only in cases where a severe acute or exacerbated chronic illness prevented timely presentation, provided the objective clinical findings at the time of examination corroborate that the person was incapacitated during the claimed period. For persons who, by reason of their illness, bear no responsibility for their actions, this retroactive window extends to ten days.
The insured person is obliged to submit the sickness certificate or notify the employer within two working days of its issuance. Where a person works for more than one employer or insurer, multiple copies of the certificate are issued. Non-working days and the use of other legally established leave do not interrupt temporary incapacity; interruption is only permitted when the person returns to work with the explicit consent of the authority that issued the certificate. The insured may not return to work before the authorised leave expires without permission from the attending physician or the MCC, and employers are prohibited from allowing insured persons on sick leave to work.
A sickness certificate is also issued, but marked “For investigation”, in cases where the incapacity arises from intentional self-harm to obtain leave or compensation; violation of the medically prescribed regimen; incapacity resulting from alcohol or narcotic substance use; incapacity due to hooliganism or other antisocial behaviour; or incapacity due to non-compliance with rules for safe work. Persons suffering from chronic alcoholism or drug addiction who are admitted for treatment in a medical establishment receive a certificate under the general procedure for the entire period of their stay.
There are specific conditions under which no certificate is issued: to uninsured persons; when the person is found fit for work at examination; for blood donation unless the donation itself caused the incapacity; for care of a chronically ill person unless a new illness causes an objectively confirmed exacerbation or terminal stage; for care of a person with permanently reduced work capacity assessed at requiring assistance — with the exception of children under sixteen; and for a disease for which TEMC or NEMC has already determined fifty percent or more permanently reduced work capacity, unless objective evidence of an exacerbation exists or the intervention is connected with the treatment of the underlying chronic condition.
The Sickness Certificate: Regimen and Pregnancy Leave
Each certificate specifies the treatment regimen applicable to the individual. The recognised regimens are hospital (inpatient); sanatorium-resort; home bed rest, either continuous or for specified hours; home room-bound; home ambulatory; and free — the last permitting movement within or beyond the locality depending on the individual’s condition. The specified regimen has administrative consequences: it governs the obligations of the insured person during the leave period and determines the conditions under which a clinical deterioration may justify a change.
Leave for pregnancy and childbirth amounts to one hundred and thirty-five calendar days per child, distributed across three sickness certificates. The first covers forty-five calendar days before the expected date of delivery and is issued by the physician responsible for antenatal care; the expected date must be recorded. The second covers forty-two calendar days immediately following delivery and is issued by the physician who attended the birth, or by the general practitioner if delivery occurred without medical attendance. The third covers forty-eight calendar days as a continuation of the previous certificate and is issued by the child’s general practitioner or the mother’s general practitioner after discharge. If the child dies, is given up for adoption, or is placed in a state-funded childcare facility before the completion of the forty-two-day period following birth, the third certificate is not issued. During the period of maternity leave, no sickness certificate is issued for other reasons; pathological pregnancy is managed under the general procedure for general illness.
Indicators of Temporary Incapacity for Work
The analysis of temporary incapacity for work uses a set of standardised indicators that describe the frequency and severity of incapacity events within an insured population, and identify sub-groups with particular vulnerability. The primary indicators are defined as follows.
Frequency expresses the number of temporary incapacity cases in a given period relative to the number of insured persons. This indicator captures how commonly incapacity episodes occur, independently of their duration.
\[\text{Frequency} = \frac{\text{Number of temporary incapacity cases (period)}}{\text{Number of insured persons}}\]
Severity expresses the total number of incapacity days relative to the number of insured persons, and therefore captures both the frequency and duration of episodes together.
\[\text{Severity} = \frac{\text{Number of days of temporary incapacity}}{\text{Number of insured persons}}\]
Average duration captures the mean duration per episode and is sensitive to the clinical and demographic mix of conditions producing incapacity.
\[\text{Average Duration} = \frac{\text{Number of days lost to temporary incapacity}}{\text{Number of temporary incapacity cases}}\]
In addition to these three primary measures, three derived indicators serve occupational health surveillance and planning purposes. The health index expresses the proportion of workers who experienced no episode of temporary incapacity during the reference period:
\[\text{Health Index} = \frac{\text{Number of persons without any temporary incapacity}}{\text{Total number of workers}}\]
The proportion of frequently ill individuals identifies workers with three or more episodes, a pattern associated with chronic or recurrent conditions warranting focused clinical and preventive attention:
\[\text{Frequently Ill} = \frac{\text{Number of persons with > 3 incapacity episodes}}{\text{Total number of workers}}\]
The proportion of long-term ill individuals identifies workers whose cumulative incapacity in the period exceeded thirty days:
\[\text{Long-term Ill} = \frac{\text{Number of persons with incapacity > 30 days}}{\text{Total number of workers}}\]
These indicators are used at the level of individual enterprises, healthcare regions, and the national social security system to monitor trends, identify high-risk occupational groups, and evaluate the effectiveness of occupational health programmes.
Cash Compensation for Temporary Incapacity
Entitlement to cash compensation requires that the person is insured for general illness and maternity as of the onset of incapacity, and that at least six months of insurance contributions have been accumulated. The minimum contribution requirement does not apply to persons under eighteen years of age, nor does it apply to compensation arising from occupational accidents or occupational diseases. In all cases, the absence from work must be formally authorised by a sickness certificate issued by a competent medical assessment body.
The employer pays the insured person seventy percent of the average daily gross salary for the reference calendar month for the first two working days of temporary incapacity due to general illness. From the third day onward, compensation is paid at eighty percent of the same base. Where the incapacity arises from an occupational accident or occupational disease, the rate is ninety percent from the first day, with the employer again responsible for the first two working days.
Cash compensation is withheld from persons who intentionally harm their health to obtain leave; who violate the medically prescribed regimen, for the days of violation only; who become incapacitated due to alcohol or narcotic substance use; who become incapacitated due to hooliganism or other antisocial behaviour; or who become incapacitated due to non-compliance with the rules of safe work.
Assessment of Permanently Reduced Work Capacity
Where temporary incapacity cannot be resolved and permanent or substantially prolonged loss of work capacity is evident, the insured is referred to TEMC for assessment of permanently reduced work capacity. The TEMC expert evaluation determines: the degree of permanently reduced work capacity expressed as a percentage relative to a healthy person; the need for assistance and its duration; the total duration of the disability period and its expiry date; the date of disability onset; contraindicated working conditions; whether the person is capable of continuing in their current employment and whether work adjustment is necessary; and the nature of the causative illness — occupational or general.
The recognised disability groups correspond to defined percentage ranges. No restriction on work is considered below fifty percent reduction. Group III disability is defined as fifty to seventy percent reduction; Group II as seventy-one to ninety percent; and Group I as ninety-one to one hundred percent, the last representing complete or near-complete loss of work capacity.
Where multiple disabilities are present, the combined percentage is calculated using a standardised methodology. The highest percentage assigned to the most severe (leading) disability constitutes the base. To this, twenty percent of the sum of the percentages of all accompanying disabilities is added. If the total would reach or exceed one hundred percent, accompanying disabilities are not added. As an illustration: a person with a leading disability assessed at eighty percent and an accompanying disability assessed at sixty percent receives a combined assessment of eighty percent plus twelve percent (twenty percent of sixty), yielding ninety-two percent.
The standard duration of disability ranges from one to three years depending on the nature and trajectory of the condition and its capacity for recovery. Where the condition is definitively irreversible — fully or partially — a lifelong duration is set. Persons who have already acquired pension rights based on insurance contributions and age receive a lifelong determination by default, though re-assessment remains possible at their request or at the request of oversight bodies.
For the assessment of TEMC activity, the primary population-level indicator is the frequency of initial TEMC decisions, expressed per thousand insured persons. The structure of these decisions — by disability group — is expressed as the proportion of persons assigned to each of Groups I, II, and III, respectively.
Social Protection
Disability pensions in Bulgaria are divided into work-related pensions, which require a qualifying period of insurance contributions, and non-work-related pensions financed from the state budget. The disability pension due to general illness requires varying contribution thresholds depending on the age at which disability onset occurred: no contributions are required for persons under twenty or blind from birth; one year of contributions for persons under twenty-five; three years for persons under thirty; and five years for persons aged thirty and above. At least one-third of the required period must consist of actual contributions. Disability pensions due to occupational accidents or occupational diseases are granted without any minimum contribution requirement.
The pension amount is calculated on the basis of the individual’s insurable income and their total years of insurance contributions — both actual and the recognised period between the age of sixteen and the statutory retirement age. For pensions granted from 25 December 2021 onwards, the rate is 1.35 percent per year of contributions. Where a recognised period is included, it is multiplied by a coefficient that reflects the severity of the disability: 0.9 for disability exceeding ninety percent, 0.7 for the seventy-one to ninety percent range, and 0.5 for the fifty to seventy percent range.
The minimum levels are set annually as proportions of the minimum pension for insurance contributions and age. From 1 January 2026, the minimum disability pension amounts are EUR 370.73 per month for the group with disability exceeding ninety percent, EUR 338.49 per month for the seventy-one to ninety percent group, and EUR 274.02 per month for the fifty to seventy percent group. The maximum total pension from one or more sources is EUR 1 738.40 per month. The non-work-related social pension for disability is payable to persons over sixteen with disability exceeding seventy-one percent whose per-capita household income falls below the statutory poverty threshold.
Beyond pensions, persons with disabilities receive additional financial and in-kind support scaled to their disability group. Persons with more than ninety percent disability are entitled to a monthly supplement for transport, telephone, and medications; a supplement for balneotherapy up to eighty percent of the poverty line; annual return rail travel on Bulgarian State Railways; targeted assistance for home adaptation up to twice the poverty line; targeted assistance for purchasing a personal motor vehicle up to four times the poverty line; a free motorway vignette; and a monthly cash supplement of twenty-five percent of the poverty line. Persons requiring assistance receive a supplementary allowance for one companion. Persons with disability in the seventy-one to ninety percent range receive monthly transport supplement, annual rail travel, a free vignette, and a monthly cash supplement of fifteen percent of the poverty line. The fifty to seventy percent group receives monthly transport supplement, a free vignette, and a cash supplement of seven percent of the poverty line.
Persons with at least fifty percent reduced work capacity also benefit from a reduction of their taxable income by the equivalent of BGN 7 920 (approximately EUR 4 049), applicable both in the year of disability onset and the year the decision expires. Parents or guardians of children with at least fifty percent disability are entitled to a further reduction of BGN 12 000 (approximately EUR 6 135) of taxable income for raising the child.