This article needs to be updated. The reason given is: no files for 2006 are listed at the cited source, but files for 2013 are there; NLM releases this information annually. Please help update this article to reflect recent events or newly available information. (February 2020)

The following is a partial list of the "A" codes for Medical Subject Headings (MeSH), as defined by the United States National Library of Medicine (NLM).

Codes following these are found at List of MeSH codes (A02). For other MeSH codes, see List of MeSH codes.

The source for this content is the set of 2006 MeSH Trees from the NLM.

MeSH A01 – body regions

MeSH A01.111 – Anatomic Landmarks

MeSH A01.236 – breast

MeSH A01.236.249 – mammary glands, human
MeSH A01.236.500 – nipples

MeSH A01.378 – extremities

MeSH A01.378.100 – amputation stumps
MeSH A01.378.610 – lower extremity
- MeSH A01.378.610.050 – ankle
- MeSH A01.378.610.100 – buttocks
- MeSH A01.378.610.250 – foot
  - MeSH A01.378.610.250.300 – forefoot, human
    - MeSH A01.378.610.250.300.480 – metatarsus
    - MeSH A01.378.610.250.300.792 – toes
      - MeSH A01.378.610.250.300.792.380 – hallux
  - MeSH A01.378.610.250.510 – heel
- MeSH A01.378.610.400 – hip
- MeSH A01.378.610.450 – knee
- MeSH A01.378.610.500 – leg
- MeSH A01.378.610.750 – thigh
MeSH A01.378.800 – upper extremity
- MeSH A01.378.800.075 – arm
- MeSH A01.378.800.090 – axilla
- MeSH A01.378.800.420 – elbow
- MeSH A01.378.800.585 – forearm
- MeSH A01.378.800.667 – hand
  - MeSH A01.378.800.667.430 – fingers
    - MeSH A01.378.800.667.430.705 – thumb
  - MeSH A01.378.800.667.572 – metacarpus
- MeSH A01.378.800.750 – shoulder
- MeSH A01.378.800.875 – wrist

MeSH A01.456 – head

MeSH A01.456.313 – ear
MeSH A01.456.505 – face
- MeSH A01.456.505.173 – cheek
- MeSH A01.456.505.259 – chin
- MeSH A01.456.505.420 – eye
  - MeSH A01.456.505.420.338 – eyebrows
  - MeSH A01.456.505.420.504 – eyelids
    - MeSH A01.456.505.420.504.421 – eyelashes
- MeSH A01.456.505.580 – forehead
- MeSH A01.456.505.631 – mouth
  - MeSH A01.456.505.631.515 – lip
- MeSH A01.456.505.733 – nose
- MeSH A01.456.505.750 – parotid region
- MeSH A01.456.505.875 - Superficial Musculoaponeurotic System
MeSH A01.456.810 – scalp
MeSH A01.456.830 – skull base
- MeSH A01.456.830.150 – cranial fossa, anterior
- MeSH A01.456.830.165 – cranial fossa, middle
- MeSH A01.456.830.200 – cranial fossa, posterior
  - MeSH A01.456.830.200.500 – Jugular Foramina
- MeSH A01.456.830.600 – Infratemporal Fossa
- MeSH A01.456.830.800 – Parapharyngeal Space

MeSH A01.598 – neck

MeSH A01.598.250 – Parapharyngeal Space
MeSH A01.598.500 – Superficial Musculoaponeurotic System

MeSH A01.635 – Organs At Risk

MeSH A01.719 – perineum

MeSH A01.923 – Torso

MeSH A01.923.047 – abdomen
- MeSH A01.923.047.025 – abdominal cavity
  - MeSH A01.923.047.025.600 – peritoneum
    - MeSH A01.923.047.025.600.225 – Douglas' Pouch
    - MeSH A01.923.047.025.600.451 – Mesentery
      - MeSH A01.923.047.025.600.451.535 – Mesocolon
    - MeSH A01.923.047.025.600.573 – Omentum
    - MeSH A01.923.047.025.600.678 – Peritoneal Cavity
    - MeSH A01.923.047.025.600.700 – Peritoneal Stomata
  - MeSH A01.923.047.025.750 – Retroperitoneal Space
- MeSH A01.923.047.050 – abdominal wall
- MeSH A01.923.047.365 – groin
- MeSH A01.923.047.412 – inguinal canal
- MeSH A01.923.047.849 – umbilicus
MeSH A01.923.112 – abdominal core
- MeSH A01.923.112.125 – abdominal wall
- MeSH A01.923.112.250 – diaphragm
- MeSH A01.923.112.500 – pelvic floor
MeSH A01.923.176 – back
- MeSH A01.923.176.519 – Lumbosacral Region
- MeSH A01.923.176.780 – Sacrococcygeal Region
MeSH A01.923.600 – pelvis
- MeSH A01.923.600.500 – lesser pelvis
- MeSH A01.923.600.600 – pelvic floor
MeSH A01.923.761 – thorax
- MeSH A01.923.800 – thoracic cavity
  - MeSH A01.923.800.500 – Mediastinum
  - MeSH A01.923.800.650 – Pleural Cavity
- MeSH A01.911.850 – thoracic wall

MeSH A01.935 – Transplant Donor Site

MeSH A01.941 – Transplants

MeSH A01.941.500 – Allografts
- MeSH A01.941.500.500 – Allogenic Cells
MeSH A01.941.750 – Autografts
MeSH A01.941.812 – Bone-Patellar Tendon-Bone Grafts
MeSH A01.941.843 – Composite Tissue Allografts
MeSH A01.941.875 – Heterografts
MeSH A01.941.937 – Isografts

MeSH A01.947 – Trigger Points

MeSH A01.960 – viscera

The list continues at List of MeSH codes (A02).

Lists of MeSH codes

Category