HSN Codes · Chapter 90: Optical, Medical, and Precision Instruments

HSN Code 9031

Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors

Typical GST rate

Varies

Depends on sub-classification

Type

Goods

HSN classification

Code level

4-digit

Heading

Reading code 9031

The first two digits (90) place this code in chapter 90 — Optical, Medical, and Precision Instruments. As a 4-digit heading it groups a whole product family; 6 and 8-digit codes underneath it get more specific. Remember: you can never invent a shorter code by truncating a longer one — only codes that exist in the official tariff are valid.

Medical and surgical instruments, diagnostic equipment, meters, lenses, and precision instruments — much of it at concessional 12%.

More specific codes under 9031

  • 903110 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — machines for balancing mechanical parts
  • 90311000 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — machines for balancing mechanical parts — machines for balancing mechanical parts
  • 903120 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — test benches
  • 90312000 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — test benches — test benches
  • 90313000 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors profile projectors
  • 903141 — For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits)
  • 90314100 — For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits)
  • 903149 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — other
  • 90314900 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — other — other
  • 903180 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors — other instruments, appliances and machines

Frequently asked questions

The GST rate under 9031 depends on the specific item and applicable notifications. Check the classification with our HSN code finder and confirm the rate before invoicing.
Businesses with annual aggregate turnover of ₹5 crore or more must report at least 6 digits on e-invoices and e-way bills; below ₹5 crore, 4 digits is the B2B minimum. Exports require 8 digits.
Every line item on a GST tax invoice carries its HSN code alongside the description, quantity, taxable value, and tax breakup. The code also flows into your GSTR-1 HSN summary and e-way bills.

Related tools & guides

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