Jun 20, 2022labor-lawemployees-compensationsocial-security-systempresidential-decree-626work-connectionsubstantial-evidence

Work Conditions and Illness: Proving Increased Risk for Employee Compensation

Supreme Court clarifies that non-occupational illnesses are compensable if work conditions increased the risk of contracting them, requiring only substantial evidence.


The Supreme Court has clarified the standard for compensating employees who die from illnesses not listed as occupational diseases. In Social Security System v. Simacas (G.R. No. 217866, June 20, 2022), the Court ruled that a claimant need only present substantial evidence showing that the employee's working conditions increased the risk of contracting the illness — not proof of a direct causal link. This decision reinforces the liberal interpretation of Presidential Decree No. 626, the law governing employees' compensation in the Philippines.

The Facts of the Case

Irnido Simacas worked as a Fabrication Helper at Fieldstar Manufacturing Corporation from April 1995 until February 2010. His job involved assisting the welder and machinist in cutting steel materials. Two years before retiring, he complained of back pains and incessant coughing. His symptoms worsened until he could no longer perform his job, and he was eventually retired from work.

In February 2010, Simacas was hospitalized with back pains, cough, painful urination, night sweating, and fever. He was diagnosed with Benign Prostatic Hypertrophy, possibly prostatic cancer, and pneumonia or pulmonary tuberculosis. He died on July 13, 2010, with his death certificate stating the cause as Cardiopulmonary Arrest probably secondary to Metastatic Prostatic Adenocarcinoma.

His surviving spouse, Violeta Simacas, filed a claim for death benefits with the Social Security System (SSS). The SSS denied the claim, ruling that prostate cancer is not an occupational disease and had no causal relationship with his work as a fabrication helper. The Employees Compensation Commission (ECC) affirmed the denial, but the Court of Appeals reversed, ordering the SSS to pay the claim. The SSS appealed to the Supreme Court.

The Issue

The central question was whether Violeta Simacas was entitled to death benefits under Presidential Decree No. 626, as amended, given that prostate cancer is not a listed occupational disease.

The Ruling: Substantial Evidence Suffices

The Supreme Court denied the SSS's petition and affirmed the Court of Appeals' decision. The Court held that for a non-occupational disease to be compensable, the claimant must prove that the risk of contracting the illness was increased by the employee's working conditions. However, the required degree of proof is merely substantial evidence — "such relevant evidence as a reasonable mind might accept as adequate to support a conclusion."

Citing Sarmiento v. Employees' Compensation Commission (228 Phil. 400 [1986]), the Court emphasized that strict rules of evidence do not apply in compensation claims. What the law requires is a reasonable work-connection, not a direct causal relation. The Court stated: "Probability not certainty is the touchstone."

Applying the Standard to the Facts

The Court found that Simacas's work involved assisting the welder and machinist in cutting steel materials. Studies cited in the decision suggest that workers engaged in manufacturing or handling stainless steel are exposed to chromium, and research has shown a small but significant increase in prostate cancer risk from chromium exposure.

Given this evidence, the Court concluded it was not unlikely that Simacas's work increased his risk of contracting prostate cancer. This probability was enough to warrant the grant of benefits.

The Court also reiterated that Presidential Decree No. 626 is a social legislation designed to protect workers against the hazards of disability, illness, and other contingencies resulting in loss of income. Citing Obra v. Social Security System (449 Phil. 200 [2003]), the Court stressed that the ECC and SSS "should adopt a liberal attitude in favor of the employee in deciding claims for compensability especially where there is some basis in the facts for inferring a work connection."

Practical Takeaways

  • Claimants need not prove direct causation. For non-occupational diseases, it is enough to show that working conditions increased the risk of contracting the illness.
  • Substantial evidence is the standard. This means relevant evidence that a reasonable mind might accept as adequate — not proof beyond reasonable doubt or clear and convincing evidence.
  • Scientific uncertainty should not bar claims. Where the cause of a disease is medically unknown, requiring impossible evidence would defeat the purpose of the law.
  • A liberal attitude governs compensation claims. Doubts in the implementation of the Labor Code and its implementing rules should be resolved in favor of labor.
  • Work exposure matters. Employees handling materials with known risk factors (such as chromium in steel work) may establish a work-connection even for illnesses not listed as occupational diseases.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.

This article is general information and not legal advice. For your situation, ask ASG Legal AI or book a consultation.