Brazil NCM · 8-digit subitem

NCM 2937.23.21 – L-Norgestrel (levonorgestrel)

NCM 2937.23.21 (also written 29372321) is Brazil's code for l-Norgestrel (levonorgestrel). Its first 6 digits are HS code 2937.23.

Official description of NCM 2937.23.21

PortuguêsOfficial
L-Norgestrel (levonorgestrel)
EnglishUnofficial translation

L-Norgestrel (levonorgestrel)

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 2937.23.21

29Chapter 37Heading 23Subheading

HS code 2937.23
Same in every country

2Item 1Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. Digits 7 and 8 are Brazil's own split of that HS code. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 29 Organic chemicals Produtos químicos orgânicos.
  2. Heading 29.37 Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones. Hormônios, prostaglandinas, tromboxanas e leucotrienos, naturais ou reproduzidos por síntese; seus derivados e análogos estruturais, incluindo os polipeptídios de cadeia modificada, utilizados principalmente como hormônios.
  3. Group 2937.2 Steroidal hormones, their derivatives and structural analogues: Hormônios esteroides, seus derivados e análogos estruturais:
  4. Subheading 2937.23 Steroidal hormones, their derivatives and structural analogues; oestrogens and progestogens Estrogênios e progestogênios
  5. Item 2937.23.2 Norgestrel and its derivatives Norgestrel e seus derivados
  6. Subitem 2937.23.21 L-Norgestrel (levonorgestrel) L-Norgestrel (levonorgestrel)

Other NCM codes under HS 2937.23

2937.23.10 Medroxyprogesterone and its derivativesMedroxiprogesterona e seus derivados 2937.23.22 DL-NorgestrelDL-Norgestrel 2937.23.29 Other norgestrel derivativesOutros 2937.23.31 Estriol and its succinateEstriol e seu succinato 2937.23.39 Other estriol esters and saltsOutros 2937.23.41 Estradiol hemisuccinateHemissuccinato de estradiol 2937.23.42 Estradiol phenpropionateFempropionato de estradiol (17-(3-fenilpropionato) de estradiol) 2937.23.49 Estradiol; other esters, salts and derivativesOutros 2937.23.51 AllylestrenolAlilestrenol 2937.23.59 Other allylestrenol esters and saltsOutros 2937.23.60 DesogestrelDesogestrel 2937.23.70 LynestrenolLinestrenol 2937.23.91 Etynodiol acetateAcetato de etinodiol 2937.23.92 GestodeneGestodeno 2937.23.99 Other oestrogens and progestogensOutros

Questions about NCM 2937.23.21

What is NCM 2937.23.21?

NCM 2937.23.21 (29372321) is the Brazilian (Mercosur) code for l-Norgestrel (levonorgestrel). Its official Portuguese description is “L-Norgestrel (levonorgestrel)”.

What is the HS code for NCM 2937.23.21?

HS 2937.23 (Steroidal hormones, their derivatives and structural analogues; oestrogens and progestogens). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 2937.23.21?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.