Title
Social Security System vs. Simacas
Case
G.R. No. 217866
Decision Date
Jun 20, 2022
A worker exposed to chromium in steel fabrication developed prostate cancer; his widow’s claim for death benefits was granted under social legislation, affirming a reasonable work-connection standard.

Case Summary (G.R. No. 217866)

Procedural History and Relief Sought

Irnido retired in February 2010 and died on July 13, 2010. His surviving spouse, Violeta, filed a claim for employees’ compensation death benefits under Presidential Decree No. 626, as amended. The SSS branch and its Medical Operations Department denied the claim as non-occupational. The ECC affirmed the denial on July 27, 2012. The CA reversed the ECC and ordered payment of benefits. The SSS filed a Petition for Review on Certiorari to the Supreme Court, which denied the petition and affirmed the CA’s decision.

Facts Relevant to the Claim

Material Facts Regarding Employment, Illness, and Cause of Death

Irnido worked assisting welders and machinists, cutting and handling steel materials and occasionally performing welding and procurement tasks. Two years before retirement he had worsening back pain and cough; he was treated by Intellicare and later hospitalized in February 2010 with diagnoses including benign prostatic hypertrophy (to consider prostatic cancer) and possible pulmonary tuberculosis; he had been on tuberculosis medication and had hepatitis A. He was again hospitalized months later for severe chest/back pain and dyspnea. Death occurred July 13, 2010; the death certificate listed cardiopulmonary arrest probably secondary to metastatic prostatic adenocarcinoma (prostate cancer).

Grounds for Denial and SSS Position

SSS’s Rationale for Denying Compensation

SSS denied the claim on the ground that prostate cancer is a non-occupational disease and that claimant failed to prove that decedent’s work increased the risk of contracting prostate cancer. The SSS Medical Operations Department maintained that prostate cancer is not listed as an occupational disease and that no causal relationship was shown between decedent’s duties as a fabrication helper and the disease.

Claimant’s Position and Evidence of Work Connection

Claimant’s Contentions and Factual Assertions

Violeta argued that P.D. No. 626 should be liberally construed for the protection of labor and that, given the limits of scientific knowledge about prostate cancer causation, it was impossible for her to present direct proof of causation. She asserted that Irnido’s duties involved strenuous handling of heavy steel, cramped and poorly ventilated workspaces, and exposure to conditions associated with welders and metal handling—circumstances that could have aggravated or increased his risk of prostate cancer. She relied on studies suggesting occupational exposures (e.g., chromium) may increase prostate cancer risk.

Legal Standard for Compensability under P.D. No. 626

Statutory and Regulatory Framework for Occupational Sickness

Under the Labor Code definition (art. 173(1)) and the Implementing Rules of P.D. No. 626 (Amended Rules on Employees’ Compensation, Rule III, sec. 1(b)), a sickness not listed as an occupational disease is compensable only upon proof that the risk of contracting it was increased by working conditions. The degree of proof required is substantial evidence establishing a reasonable work connection—not direct causation. The Sarmiento standard governs: a reasonable, probable work-connection suffices; probability, not certainty, is the touchstone; strict rules of evidence are relaxed in compensation claims.

Court’s Analysis of Medical Evidence and Occupational Risk

Evaluation of Medical Knowledge, Risk Factors, and Occupational Exposure

The Court acknowledged that prostate cancer’s etiology is not well established; recognized established risk factors (age, ethnicity, genetics) but also noted studies suggesting a small but significant association between chromium exposure and increased prostate cancer risk. Given the undisputed facts that decedent assisted in cutting and handling steel—an industry where workers encounter chromium—the Court found a plausible increased risk stemming from his working conditions. The Court treated such probability, supported by factual circumstances and scientific literature cited in the record, as sufficient under P.D. No. 626’s standard.

On Reviewability of Factual Findings

Scope of Supreme Court Review of Factual Findings

The Court reiterated the general rule that its review is limited to questions of law and that CA factual findings are binding when supported by substantial evidence, but it recognized established exceptions (as enumerated in Medina v. Asistio, Jr.). Because the CA’s findings conflicted with those of SSS and the ECC, and given the factual controversy over work conditions and risk, the Supreme Court proce

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