Clemente vs. GSIS

For sickness not listed as an occupational disease to be compensable under the Labor Code, the claimant need only show by substantial evidence that the risk of contracting the disease was increased by the working conditions; what the law requires is a reasonable work-connection, not a direct causal relation.

Pedro Clemente served as a janitor for ten years at the Ilocos Norte Skin Clinic in Laoag City, a facility under the Department of Health (Dagupan City) where patients with various skin diseases, including Hansen's disease, were treated. His widow, Carolina Clemente, sought employees' compensation benefits under the Labor Code, as amended, following his death. The claim was processed through the Government Service Insurance System (GSIS) and then the Employees' Compensation Commission (ECC), the agencies tasked with administering and adjudicating employees' compensation claims under Presidential Decree No. 626.

Pedro Clemente was employed for ten years as a janitor at the Ilocos Norte Skin Clinic in Laoag City, a facility under the Department of Health (Dagupan City). His duties required him to clean the clinic and its surroundings, arrange used hospital equipment, and dispose of garbage and waste that accumulated daily—all in an environment where patients with various skin diseases, including Hansen's disease, came for treatment. He was not a medical practitioner and thus lacked the training to avoid infection from the materials he handled.

On November 3, 1976, Clemente was hospitalized at the Central Luzon Sanitarium in Tala, Caloocan City, where his attending physician, Dr. Winifredo Samson, certified his ailment as nephritis. He was also found to be suffering from portal cirrhosis and leprosy, otherwise known as Hansen's Disease. He remained hospitalized until November 14, 1976, when he died of uremia due to nephritis.

Thereafter, his widow, Carolina Clemente, filed a claim for employees' compensation with the GSIS. The GSIS denied the claim on February 4, 1977, reasoning that the ailments were not occupational diseases and bore no causal relation to his work. Petitioner sought reconsideration, asserting that her husband's ailments were contracted in the course of employment and aggravated by his working conditions—specifically, his direct contact with persons suffering from different skin diseases and his exposure to obnoxious dusts and dirt. The GSIS reiterated its denial on April 11, 1977, and forwarded the records to the ECC.

The ECC affirmed the denial on October 26, 1977. It found that the ailments were not listed as occupational diseases, that petitioner had failed to submit substantial proof of causation, and that the records showed the deceased had already been suffering from Hansen's disease prior to his employment. The ECC concluded that his working conditions did not increase the risk of contracting the disease and that, while his employment may have aggravated his pre-existing illness, aggravation was no longer a ground for compensation under the new law.

• Increased Risk Theory: Petitioner argued that the deceased's ailments, while not listed occupational diseases, were compensable because his working conditions as a janitor in a skin clinic increased the risk of contracting them. She averred that for ten years the deceased cleaned the clinic, handled used equipment, disposed of waste, and freely mixed with patients suffering from various skin diseases including Hansen's disease, and that it was during this period that he was attacked by uremia, cancer of the liver, and nephritis.
• Recurrence of Pre-Existing Illness: Petitioner contended that even if the deceased had previously contracted Hansen's disease, the ailment recurred in the course of employment, presumably due to his direct contact with persons suffering from the disease, citing Seven-Up Bottling Co. of the Phil. vs. Rimerata and Avana vs. Quisumbing.
• Liberal Interpretation: Petitioner invoked the principle that doubts in labor and compensation cases should be resolved in favor of the claimant-employee.

• Lack of Substantial Evidence: The ECC contended that petitioner failed to prove by substantial evidence that the deceased's ailments were caused by his employment, maintaining that the deceased merely had a recurrence of a pre-existing illness possibly aggravated by the nature of his employment, with no evidence showing that his work was the direct cause of any of his illnesses.
• Aggravation No Longer Compensable: The respondents argued that while aggravation of an existing ailment may have occurred, aggravation is no longer a ground for compensation under the present law (P.D. 626), and that the compensable factor of increased risk was not present.
• GSIS as Improper Party: The GSIS argued that it should be dropped as a party respondent, claiming that petitioner had no cause of action against it since the subject of judicial review was the adverse decision of the ECC.

• Compensability Under Increased Risk Theory: Whether the deceased's ailments, not being listed occupational diseases, are compensable on the ground that his working conditions increased the risk of contracting them.
• Proper Party: Whether the GSIS is a proper party respondent in a petition for review of an ECC decision.

• Compensability Under Increased Risk Theory: Yes. The claim is compensable because substantial evidence showed that the deceased's working conditions as a janitor in a skin clinic increased the risk of contracting his ailments; the law requires only a reasonable work-connection, not a direct causal relation.
• Proper Party: No, the GSIS should not be dropped. As the ultimate implementing agency of the ECC's decisions, the GSIS is a necessary and proper party in employees' compensation cases.

• Compensability Under Increased Risk Theory: Under Article 167(L) of the Labor Code and Section 1(b), Rule III of the Amended Rules on Employees' Compensation, a sickness not listed under Annex "A" as an occupational disease is compensable only if proof shows that the risk of contracting the disease is increased by working conditions. The degree of proof required is merely substantial evidence—such relevant evidence as a reasonable mind might accept as adequate to support a conclusion—and what the law requires is a reasonable work-connection, not a direct causal relation. Probability, not certainty, is the touchstone. Applying this standard, the Court found that the deceased's ailments—nephritis, leprosy, portal cirrhosis—could be traced to bacterial and viral infections. Leprosy is transmitted through direct contact with discharges from lesions of active cases, the bacillus entering through the skin or mucous membranes. Infectious diseases giving rise to nephritis include bacterial and viral infections. As a janitor in a skin clinic, the deceased was the employee most exposed to dangerous concentrations of infected materials—cleaning the clinic, handling used equipment, and disposing of waste—while being the least likely to know how to avoid infection, not being a medical practitioner. It was therefore not unreasonable to conclude that his working conditions increased the risk of contracting the ailments. The respondents' theory that the deceased merely suffered aggravation of a pre-existing illness failed to explain how a sick person was able to enter government service more than ten years before becoming too ill to work, with no evidence that he was hired despite having a disease liable to become worse. When two or more explanations regarding compensability are possible, the one favoring the claimant must be chosen, pursuant to Article 4 of the Labor Code.
• Proper Party: The GSIS contended it should be dropped as a party because the subject of judicial review was the ECC's decision. The Court rejected this, citing Cabanero vs. Employees' Compensation Commission, which held that the GSIS, as the ultimate implementing agency of the ECC's decisions, is a proper and necessary party. The law and the rules refer to the GSIS in all aspects of employee compensation, including enforcement of decisions under Article 182 of the Implementing Rules.

• Increased Risk Theory — For a sickness not listed as an occupational disease under Annex "A" of the Amended Rules on Employees' Compensation, compensability may be established by showing that the risk of contracting the disease was increased by the claimant's working conditions. The claimant must show at least by substantial evidence that the development of the disease was brought largely by conditions present in the nature of the job. What the law requires is a reasonable work-connection, not a direct causal relation. Probability, not certainty, is the touchstone. Medical opinion to the contrary may be disregarded where there is some basis in the facts for inferring a work-connection.
• Substantial Evidence Standard in Compensation Claims — Strict rules of evidence are not applicable in claims for compensation. The degree of proof required is merely substantial evidence, defined as "such relevant evidence as a reasonable mind might accept as adequate to support a conclusion."
• Doubt Resolved in Favor of Claimant — Pursuant to Article 4 of the New Labor Code, doubts in the interpretation and implementation of labor laws and contracts should be resolved in favor of labor. When there are two or more possible explanations regarding an issue of compensability, that which favors the claimant must be chosen.
• Liberal Interpretation of the Labor Code — The conservative posture of respondents in denying compensation claims is inconsistent with the liberal interpretation of the Labor Code and the social justice guarantee embodied in the Constitution in favor of workers.
• GSIS as Proper Party in ECC Reviews — The GSIS, as the ultimate implementing agency of ECC decisions, is a proper and necessary party in petitions for review of ECC rulings, because the law and the rules refer to the GSIS in all aspects of employee compensation, including enforcement of decisions.

• "What the law requires is a reasonable work-connection and not a direct causal relation." — This passage articulates the governing standard for compensability of unlisted diseases under the increased risk theory, distinguishing it from the stricter direct causation requirement.
• "Probability not certainty is the touchstone." — This formulation defines the evidentiary threshold for work-connection in employees' compensation claims, frequently cited in subsequent jurisprudence on compensability.
• "It is, therefore, not unreasonable to conclude that Mr. Clemente's working conditions definitely increased the risk of his contracting the aforementioned ailments." — This statement applies the increased risk theory to the specific facts, showing how exposure to infectious materials in a clinical setting satisfies the reasonable work-connection standard.
• "When there are two or more possible explanations regarding an issue of compensability that which favors the claimant must be chosen." — This passage applies Article 4 of the Labor Code to the evidentiary gap regarding whether the deceased's pre-existing illness was aggravated or whether his working conditions caused a recurrence, resolving the doubt in favor of the employee.

• Sarmiento vs. Employees' Compensation Commission, 144 SCRA 421 — Followed. Cited for the proposition that strict rules of evidence are not applicable in compensation claims, that substantial evidence suffices, and that a reasonable work-connection rather than direct causal relation is required.
• De Jesus vs. Employees' Compensation Commission, 142 SCRA 92 — Followed. Cited for the rule that for unlisted diseases to be compensable, proof must be shown that the risk of contracting the disease is increased by working conditions.
• Cabanero vs. Employees' Compensation Commission, 111 SCRA 413 — Followed. Cited for the holding that the GSIS is a proper and necessary party in petitions for review of ECC decisions, as the ultimate implementing agency.
• Cabanes vs. Employees' Compensation Commission, L-50255, January 30, 1982 — Followed. Cited for the principle that a conservative posture in denying compensation claims is inconsistent with the liberal interpretation of the Labor Code and the constitutional guarantee of social justice.
• Cristobal vs. Employees' Compensation Commission — Followed. Cited for the substantial evidence standard and the rule that medical opinion to the contrary may be disregarded where there is some basis for inferring a work-connection.
• Seven-Up Bottling Co. of the Phil. vs. Rimerata, L-24349, December 24, 1968 — Cited by petitioner for the proposition that a pre-existing ailment that recurs during employment is compensable; the Court did not expressly rely on it but found the petitioner's theory plausible under the increased risk framework.

• Article 167(L), Labor Code — Defines the conditions for compensability of sickness: the sickness must be the result of an occupational disease listed under Annex "A" with the conditions therein satisfied, otherwise proof must be shown that the risk of contracting the disease is increased by working conditions. Applied to determine that the deceased's unlisted ailments required proof of increased risk.
• Section 1(b), Rule III, Amended Rules on Employees' Compensation — Mirrors Article 167(L) in requiring either a listed occupational disease or proof of increased risk for compensability. Applied as the procedural counterpart to the Labor Code provision.
• Article 4, New Labor Code — Provides that doubts in the interpretation and implementation of labor laws and contracts shall be resolved in favor of labor. Applied to resolve the ambiguity between aggravation of a pre-existing illness and recurrence or increased-risk contraction in favor of the claimant.
• Article 182, Implementing Rules — Refers to the GSIS in all aspects of employee compensation, including enforcement of decisions. Applied to uphold the GSIS as a proper party in the petition for review.

Fernan (Chairman), Feliciano, Bidin, and Cortes, JJ., concurred.