An Indian patient prescribed long-term oxygen therapy (LTOT) faces out-of-pocket costs that vary by an order of magnitude depending on which scheme or policy pays. The same 5 LPM concentrator that costs the uninsured patient ₹45,000–65,000 is supplied at zero cost through CGHS, reimbursed at 70–90% to a private-insurance beneficiary with a good inpatient-linked claim, or not paid for at all by several large private policies that exclude durable medical equipment. Navigation is scheme-specific and rules are rarely published cleanly in one place. This article covers what actually gets reimbursed by CGHS, ESIC, Ayushman Bharat PMJAY, and state-level schemes, and closes with private-insurance patterns and rejection failure modes.
CGHS: Central Government Health Scheme
CGHS is the comprehensive medical scheme for serving and retired Central Government employees, Members of Parliament, ex-MPs, freedom fighters, journalists with accreditation, and their dependents. Approximately 4.5 million beneficiaries are covered. The scheme operates wellness centres in roughly 80 Indian cities and empanels hospitals, diagnostic centres, pharmacies, and medical-device suppliers across most large-population districts.
What CGHS covers for home oxygen
CGHS covers inpatient oxygen in full and covers home concentrators and cylinders on a prescription-plus-approval workflow — rental for short-term needs, purchase for LTOT indications.
- Inpatient oxygen: fully covered as part of the admission package at empanelled hospitals. Cashless by default; reimbursement applies for non-cashless admissions.
- Concentrator purchase: specialist prescription (pulmonology, internal medicine, or cardiology at a CGHS wellness centre or empanelled hospital) plus Medical Superintendent approval. The indication must be consistent with long-term need (GOLD III–IV COPD with resting hypoxaemia, severe ILD, pulmonary hypertension with chronic hypoxaemia, severe HF with nocturnal hypoxaemia). Purchase via empanelled vendor with reimbursement or credit-purchase route.
- Concentrator rental: approved for short-term needs — post-operative recovery, acute-event discharge, time-limited palliation. Typical empanelled rates ₹2,500–4,500/month for 5 LPM, ₹4,500–7,500/month for 10 LPM. Approved in 3-month blocks; extension requires re-prescription.
- Cylinder refills: reimbursable against prescription; high-flow therapy beyond the scheme’s ceilings requires specialist approval.
The CGHS paperwork workflow
- Specialist consultation at a wellness centre or empanelled hospital; prescription states condition, flow rate, hours per day, duration, and “home concentrator” or “cylinder”.
- Quote from an empanelled vendor including model, capacity, warranty. Empanelment lists are published by the CGHS Additional Director.
- Medical Superintendent approval — typically 7–21 working days.
- Purchase and reimbursement or cashless.
Common CGHS rejection reasons: prescription missing flow rate, duration, or clinical indication; non-empanelled vendor quote; delay between prescription and purchase triggering re-approval; missing Medical Superintendent signature. (CGHS)
ESIC: Employees’ State Insurance Corporation
ESIC covers formal-sector workers up to the current wage ceiling (~₹21,000/month for most categories, higher for persons with disability). Approximately 130 million insured persons and family dependents. 160 hospitals, 1,500+ dispensaries, plus a tie-up network.
- Inpatient oxygen: covered in full at ESIC and tie-up hospitals.
- Home concentrator: specialist prescription from an ESIC or tie-up hospital plus Medical Superintendent approval; procurement through ESIC central supply or approved-supplier reimbursement.
- Cylinder refills: reimbursable against prescription.
The friction point: prescription must originate from an ESIC or tie-up hospital. A private pulmonologist’s note outside the ESIC network is not accepted for primary approval; a “second opinion” supporting pathway is available in some divisional offices but varies state to state. Rental pathways are less developed than CGHS’s; Maharashtra and Gujarat divisions tend to process faster than the North-East. (ESIC)
Ayushman Bharat PMJAY: the chronic-LTOT gap
Pradhan Mantri Jan Arogya Yojana (PMJAY) is India’s largest public insurance scheme, providing an annual family cover of ₹5 lakh for secondary and tertiary hospitalisation. Over 120 million families are eligible — identified primarily through the Socio-Economic Caste Census (SECC) database plus state-level extensions. The scheme is implemented through empanelled public and private hospitals.
The critical gap for LTOT:
- Inpatient oxygen during a covered admission — fully covered. A PMJAY beneficiary admitted for an acute COPD exacerbation, ARDS, post-operative respiratory support, or any other covered indication receives all required oxygen therapy as part of the admission package with no out-of-pocket cost.
- Home concentrator purchase or rental — not in the covered benefit set. PMJAY is an inpatient-and-procedure scheme by design; durable medical equipment for outpatient or home use is generally outside its scope.
- Post-discharge oxygen cylinders — similarly not covered under the standard benefit set. Some specific procedures have post-discharge follow-up components, but home LTOT for chronic conditions is not among them.
The operational consequence is that a family eligible for PMJAY and newly prescribed LTOT after a hospital admission often discovers that the admission was fully covered but the home concentrator they now need is not. The treating hospital’s social-work team usually understands this and advises the family to apply for their state-specific scheme or state-level DME support, which varies substantially.
Some states have bolted on LTOT-specific benefits atop the PMJAY framework through convergent state schemes. Kerala’s Karunya Arogya Suraksha Padhathi (KASP) has extended durable-equipment coverage for specific indications in convergence with PMJAY. Tamil Nadu’s Chief Minister’s Comprehensive Health Insurance Scheme (CMCHIS) includes DME in some treatment packages. These are state-by-state bolt-ons and the operational realities differ; the family has to ask the specific state authority or treating hospital social worker.
State-scheme variations
State schemes are where the most variation exists and where the most consequential differences for patients live. We cover the four states where we most often see patient-level queries.
Tamil Nadu — CMCHIS. Covers up to ₹5 lakh per family per year through empanelled hospitals. Home oxygen is bundled with specific procedure packages; stand-alone equipment goes through the Tamil Nadu Medical Services Corporation (TNMSC) and district-level CMCHIS coordination. State hospitals maintain concentrator pools for issue under specialist prescription; post-discharge patients often get a loan unit before conversion to CMCHIS or TNMSC purchase.
Kerala — KASP. PMJAY with broader equipment coverage. Strong public-hospital network; district medical colleges and government medical stores usually have concentrators; cooperative pharmacies and KMSC outlets offer subsidised cylinder refills. Kerala out-of-pocket costs with active KASP eligibility are among the lowest in the country.
Karnataka — Arogya Karnataka. PMJAY convergence for BPL families. Concentrator purchase through the scheme is possible but uncommon; district hospital issue from the internal pool is the usual pathway. Urban Bengaluru patients typically route via private insurance or out-of-pocket.
Maharashtra — MJPJAY. Up to ₹5 lakh per family. Procedure-package architecture; home oxygen is not covered stand-alone. Civil hospitals in Mumbai, Pune, Nashik, Nagpur maintain pools; NGO partnerships are stronger than in most states.
Three patterns across states: hospital-pool loan is the most accessible pathway for BPL patients and often faster than formal DME approval; NGO concentrator banks (strongest in Mumbai, Pune, Bengaluru, Chennai, Hyderabad, Ahmedabad, Delhi) fill the gap; Tier-3 and rural taluka reach is uneven, often forcing travel to a district or tertiary hospital.
Prescription, quote, and approval — the practical workflow
Across schemes and insurers, the workflow pattern is consistent:
- Diagnostic workup and prescription. Specialist consultation produces: (a) a diagnosis consistent with LTOT indication (COPD with chronic hypoxaemia, severe ILD, pulmonary hypertension, etc.); (b) objective evidence of hypoxaemia — typically an arterial blood gas showing PaO₂ ≤ 55 mmHg on room air, or SpO₂ ≤ 88% on room air confirmed on two occasions; (c) a specific prescription stating flow rate, hours per day, and duration.
- Vendor quote. The quote should include the concentrator make and model, warranty terms, delivery terms, any installation charges, and whether the vendor is empanelled with the relevant scheme. For CGHS, the quote must come from an empanelled vendor. For private insurance, the vendor does not need to be empanelled but may need to be one the insurer will pay directly (some insurers pay only in reimbursement, others pay cashless via specific vendor networks).
- Approval. Scheme approval is sought. For private insurance, a pre-authorisation request is filed.
- Purchase / delivery. With approval in hand, the vendor supplies the concentrator. Installation, stabiliser, and humidifier accessories are typically included in the quote.
- Claim submission or cashless adjustment. Reimbursement claims include the original invoice, the prescription, the approval letter, proof of payment, and — for some schemes — an installation certificate confirming the device was delivered and is in use.
What receipts qualify
- GST invoice from the vendor (mandatory for all schemes and insurers)
- Vendor’s empanelment certificate or statement, if relevant
- Delivery challan with patient name and address
- Installation/commissioning report signed by the vendor and patient
Receipts that do not qualify: shop bills without GST, handwritten bills, invoices from non-GST-registered suppliers, invoices with mismatched patient details.
Typical rejection reasons
Across CGHS, ESIC, state schemes, and private insurance, the top reasons for claim rejection cluster into a short list:
- Prescription deficiencies. Missing flow rate, missing duration, missing clinical rationale for long-term use, prescription from a non-approved specialist for the scheme.
- Missing objective hypoxaemia evidence. A specialist prescription alone is not always sufficient; scheme assessors often require an arterial blood gas or room-air SpO₂ reading documenting the threshold hypoxaemia.
- Vendor empanelment issues. Purchase from a non-empanelled vendor where empanelment is required.
- Timing problems. Purchase before approval, or approval older than 30–60 days at the time of purchase (both trigger re-approval).
- Incomplete documentation at claim submission. Missing delivery challan, missing installation certificate, missing prescription, missing approval letter.
- Device not in the approved category. Scheme approves 5 LPM stationary; vendor supplies 10 LPM or a portable unit; claim is rejected or partially reimbursed.
- Condition not in the scheme’s covered indications. For PMJAY specifically, home LTOT as a stand-alone request is outside the covered scope; the claim is returned with advice to seek state-scheme or hospital-pool support instead.
Private insurance: what Star, HDFC Ergo, ICICI Lombard typically cover
Private health insurance in India is governed by IRDAI guidelines and individual policy wordings. The treatment of durable medical equipment is policy-specific and is the single most important thing to check before assuming coverage.
The general pattern
- Inpatient oxygen is virtually always covered as part of the hospitalisation claim. No Indian mainstream private insurer excludes inpatient oxygen from covered hospitalisation.
- Home oxygen concentrators are covered by some policies and excluded by others. The inclusion is typically framed as “durable medical equipment required as a direct consequence of the covered hospitalisation,” with a cap (often 10% of the hospitalisation claim) and a time window (often 30–60 days post-discharge).
- Stand-alone home LTOT prescription, no recent hospitalisation — typically not covered. Without a preceding covered admission, there is no “hospitalisation claim” to attach the durable equipment to, and most policies do not have a stand-alone outpatient DME benefit.
Star Health (Family Health Optima, Senior Citizens Red Carpet, Comprehensive): post-hospitalisation coverage typically up to 60 days with cost caps. Concentrator purchased during the post-discharge window for a covered respiratory or cardiac admission is routinely reimbursed tied to the hospitalisation claim. Stand-alone purchase is not covered. Senior products occasionally have explicit DME clauses — check product-specific wording.
HDFC Ergo Health (Optima Secure, Easy Health, my:health Suraksha): post-hospitalisation DME within 60 days with a 10% hospitalisation-claim cap. Stand-alone home oxygen not covered. Documentation-heavy; clean invoices and discharge summary process smoothly.
ICICI Lombard (Complete Health Insurance, Health Shield): industry-standard pattern; post-hospitalisation DME with caps, no stand-alone LTOT. Cashless network stronger in Tier-1 than Tier-3.
Care Health, Niva Bupa, Aditya Birla Health, New India Assurance follow variations of the same framework. Top-tier or group corporate plans occasionally include explicit home-DME benefits; base individual products usually do not.
The specific policy review should check: DME terms in inclusions/exclusions; post-hospitalisation benefit period (30/60/90 days); percentage cap (often 10% of hospitalisation claim); any explicit mention of “home oxygen” or “home ventilation”; any “chronic disease” exclusion. Many families are surprised to discover a decade-old policy does not cover a ₹55,000 concentrator because coverage is inpatient-scoped.
Practical takeaway
If the patient is a Central Government retiree or serving employee, CGHS is the first approach and typically covers the concentrator in full or close to full — budget 2–4 weeks for approval through the wellness centre workflow, supply only from empanelled vendors, and keep all prescriptions, quotes, and invoices together. If the patient is in the ESIC wage bracket, ESIC hospital prescription and specialist approval is the pathway — not a private pulmonologist’s note. If the patient is PMJAY-eligible, inpatient oxygen is fully covered during admissions but the home concentrator for chronic LTOT is generally outside PMJAY’s covered scope; pursue state schemes or district hospital pool loans and lean on NGO networks where available. If the patient has private insurance, read the specific policy wording on durable medical equipment before assuming coverage; coverage is most often tied to a preceding covered hospitalisation and capped at 10% of that claim, not a stand-alone outpatient benefit. Budget for ₹5,000–15,000 in stabiliser, UPS, or accessory costs that most schemes do not cover even where the concentrator itself is paid for. Consult the treating pulmonologist before starting therapy, and ask the hospital’s social-work desk specifically about the empanelment and scheme route on the day of discharge — that conversation typically saves 2–6 weeks of subsequent paperwork.
Background references: CGHS Office Memoranda; ESIC Act 1948 and regulations; National Health Authority PMJAY operational guidelines; state health authority convergence circulars for KASP, CMCHIS, MJPJAY, Arogya Karnataka; IRDAI health insurance regulations (CGHS).