ICD-10-CM 2027
ICD-10 code for mass
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Mass”. Page updated September 29, 2026.
About coding mass
The official ICD-10-CM index doesn't give a single default code for mass; the code depends on the details below.
More specific mass codes (official index)
- abdominal R19.00 — Intra-abdominal and pelvic swelling, mass and lump, unspecified site
- epigastric R19.06 — Epigastric swelling, mass or lump
- generalized R19.07 — Generalized intra-abdominal and pelvic swelling, mass and lump
- left lower quadrant R19.04 — Left lower quadrant abdominal swelling, mass and lump
- left upper quadrant R19.02 — Left upper quadrant abdominal swelling, mass and lump
- periumbilic R19.05 — Periumbilic swelling, mass or lump
- right lower quadrant R19.03 — Right lower quadrant abdominal swelling, mass and lump
- right upper quadrant R19.01 — Right upper quadrant abdominal swelling, mass and lump
- specified site NEC R19.09 — Other intra-abdominal and pelvic swelling, mass and lump
- breast N63.0 — Unspecified lump in unspecified breast
- chest R22.2 — Localized swelling, mass and lump, trunk
- cystic
- ear H93.8 — Other specified disorders of ear
- head R22.0 — Localized swelling, mass and lump, head
- intra-abdominal (diffuse) (generalized)
- kidney N28.89 — Other specified disorders of kidney and ureter
- liver R16.0 — Hepatomegaly, not elsewhere classified
- localized (skin) R22.9 — Localized swelling, mass and lump, unspecified
- chest R22.2 — Localized swelling, mass and lump, trunk
- head R22.0 — Localized swelling, mass and lump, head
- limb
- lower R22.4 — Localized swelling, mass and lump, lower limb
- upper R22.3 — Localized swelling, mass and lump, upper limb
- neck R22.1 — Localized swelling, mass and lump, neck
- trunk R22.2 — Localized swelling, mass and lump, trunk
- lung R91.8 — Other nonspecific abnormal finding of lung field
- malignant
- neck R22.1 — Localized swelling, mass and lump, neck
- pelvic (diffuse) (generalized)
- specified organ NEC
- splenic R16.1 — Splenomegaly, not elsewhere classified
- substernal thyroid
- superficial (localized) R22.9 — Localized swelling, mass and lump, unspecified
- umbilical (diffuse) (generalized) R19.09 — Other intra-abdominal and pelvic swelling, mass and lump
Common questions about mass ICD-10 codes
What is the ICD-10 code for abdominal mass?
- R19.00 — Intra-abdominal and pelvic swelling, mass and lump, unspecified site.
What is the ICD-10 code for breast mass?
- N63.0 — Unspecified lump in unspecified breast.
What is the ICD-10 code for chest mass?
- R22.2 — Localized swelling, mass and lump, trunk.
What is the ICD-10 code for ear mass?
- H93.8 — Other specified disorders of ear (header code; choose a more specific subcode).
What is the ICD-10 code for head mass?
- R22.0 — Localized swelling, mass and lump, head.
What is the ICD-10 code for kidney mass?
- N28.89 — Other specified disorders of kidney and ureter.
What is the ICD-10 code for liver mass?
- R16.0 — Hepatomegaly, not elsewhere classified.